七年级上册数学问题
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\u8bbe\u7ecf\u8fc7t\u5206\u949f\u9996\u6b21\u76f8\u9047\uff0c\u5219
350t + 250t = 400
t= 400 / (350 + 250) = 2/3 \u5206\u949f\uff0c\u537340\u79d2\u3002
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9.\u6570\u5b57\u4e0e\u5b57\u6bcd\u7684\u79ef\uff0c\u8fd9\u6837\u7684\u5f0f\u5b50\u53eb\u505a\u5355\u9879\u5f0f.
(1)\u5355\u72ec\u7684\u4e00\u4e2a\u6570\u6216\u4e00\u4e2a\u5b57\u6bcd\u4e5f\u662f\u5355\u9879\u5f0f.
(2)\u5355\u9879\u5f0f\u4e2d\u7684\u6570\u5b57\u56e0\u6570\u53eb\u505a\u8fd9\u4e2a\u5355\u9879\u5f0f\u7684\u7cfb\u6570.
(3)\u4e00\u4e2a\u5355\u9879\u5f0f\u4e2d\uff0c\u6240\u6709\u5b57\u6bcd\u7684\u6307\u6570\u7684\u548c\u53eb\u505a\u8fd9\u4e2a\u5355\u9879\u5f0f\u7684\u6b21\u6570.
10.\u51e0\u4e2a\u5355\u9879\u5f0f\u7684\u548c\u53eb\u505a\u591a\u9879\u5f0f.
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11.\u5355\u9879\u5f0f\u548c\u591a\u9879\u5f0f\u7edf\u79f0\u6574\u5f0f.
12.\u6240\u542b\u5b57\u6bcd\u76f8\u540c\uff0c\u5e76\u4e14\u76f8\u540c\u5b57\u6bcd\u7684\u6307\u6570\u4e5f\u76f8\u540c\u7684\u9879\u53eb\u505a\u540c\u7c7b\u9879\uff0c\u51e0\u4e2a\u5e38\u6570\u9879\u4e5f\u662f\u540c\u7c7b\u9879.
13.\u628a\u591a\u9879\u5f0f\u4e2d\u7684\u540c\u7c7b\u9879\u5408\u5e76\u6210\u4e00\u9879\uff0c\u53eb\u505a\u5408\u5e76\u540c\u7c7b\u9879.
14.\u79fb\u9879\u6cd5\u5219\uff1a\u628a\u7b49\u5f0f\u4e00\u8fb9\u7684\u67d0\u9879\u53d8\u53f7\u540e\u79fb\u5230\u53e6\u4e00\u8fb9\u53eb\u79fb\u9879.
15.\u4e92\u4e3a\u4f59\u89d2\uff1a\u5982\u679c\u4e24\u4e2a\u89d2\u7684\u548c\u4e3a90\u00b0\uff0c\u90a3\u4e48\u8fd9\u4e24\u4e2a\u89d2\u4e92\u4e3a\u4f59\u89d2.\u5982\u76f4\u89d2\u4e09\u89d2\u5f62ABC\u4e2d\uff0c
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16.\u4e92\u4e3a\u8865\u89d2\uff1a\u5982\u679c\u4e24\u4e2a\u89d2\u7684\u548c\u4e3a180\u00b0\uff0c\u90a3\u4e48\u8fd9\u4e24\u4e2a\u89d2\u4e92\u4e3a\u8865\u89d2.
17.\u2220\u03b1\u7684\u4f59\u89d2\u662f\uff1a90\u00b0-\u2220\u03b1\uff0c\u2220\u03b2\u7684\u8865\u89d2\u662f\uff1a180\u00b0-\u03b2
18.\u4e92\u4e3a\u4f59\u89d2\u7684\u6027\u8d28\uff1a\u540c\u89d2\u6216\u7b49\u89d2\u7684\u4f59\u89d2\u76f8\u7b49.\u4e92\u4e3a\u8865\u89d2\u7684\u6027\u8d28\uff1a\u540c\u89d2\u6216\u7b49\u89d2\u7684\u8865\u89d2\u76f8\u7b49.
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1.|2|\u7684\u76f8\u53cd\u6570\u662f_____\uff0c-(-2)\u7684\u76f8\u53cd\u6570\u662f \uff0c \u7684\u5012\u6570\u662f .
2.\u7edd\u5bf9\u503c\u7b49\u4e8e3\u7684\u6570\u6709____\u4e2a\uff0c\u5b83\u4eec\u662f________\uff1b\u7edd\u5bf9\u503c\u4e0d\u5927\u4e8e3\u7684\u6574\u6570\u6709____\u4e2a\uff0c\u5b83\u4eec\u662f________.
3. \u5728\u4ee3\u6570\u5f0f\uff1a \uff0c \uff0c \uff0c \uff0c \u4e2d\uff0c\u5355\u9879\u5f0f\u7684\u4e2a\u6570\u4e3a_________.\u5982\u679c \u662f\u5173\u4e8e \u3001 \u7684\u4e00\u4e2a\u5355\u9879\u5f0f\uff0c\u4e14\u7cfb\u6570\u662f9\uff0c\u6b21\u6570\u662f4\uff0c\u90a3\u4e48\u591a\u9879\u5f0f \u662f_____________\u6b21\u5f0f.
4. \u7684\u76f8\u53cd\u6570\u662f\uff08 \uff09
A\uff0e8 B\uff0e C\uff0e D\uff0e-
5\uff0e\u5355\u9879\u5f0f \u7684\u7cfb\u6570\u548c\u6b21\u6570\u5206\u522b\u662f ( )
A. B. C. D.
6. \uff1b
7. \uff1b
8.\u89e3\u65b9\u7a0b\uff1a3\uff08x\uff0d2\uff09+1=x\uff0d5\uff082x\uff0d1\uff09.
9. \u4e00\u4ef6\u5de5\u4f5c\uff0c\u7532\u5355\u72ec\u505a6\u5c0f\u65f6\u5b8c\u6210\uff0c\u4e59\u5355\u72ec\u505a12\u5c0f\u65f6\u5b8c\u6210\uff0c\u4e19\u5355\u72ec\u505a18\u5c0f\u65f6\u5b8c\u6210\uff0c\u82e5\u5148\u7531\u7532\u3001\u4e59\u5408\u505a3\u5c0f\u65f6\uff0c\u7136\u540e\u7531\u4e59\u4e19\u5408\u505a\uff0c\u95ee\u5171\u9700\u51e0\u5c0f\u65f6\u5b8c\u6210\uff1f
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(1)\u5c06\u5c0f\u674e\u4e0b\u5348\u51fa\u53d1\u5730\u8bb0\u4e3aO\uff0c\u4ed6\u5c06\u6700\u540e\u4e00\u540d\u4e58\u5ba2\u9001\u62b5\u76ee\u7684\u5730\u65f6\uff0c\u5c0f\u674e\u8ddd\u4e0b\u5348\u51fa\u8f66\u65f6\u7684\u51fa\u53d1\u70b9\u6709\u591a\u8fdc?
(2)\u82e5\u6c7d\u8f66\u8017\u6cb9\u91cf\u4e3aO.35\u5347\uff0f\u5343\u7c73\uff0c\u8fd9\u5929\u4e0b\u5348\u5c0f\u674e\u5171\u8017\u6cb9\u591a\u5c11\u5347?
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11. \u8ba1\u7b97\uff1a
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1. \u5728\u6709\u7406\u6570\u4e2d\uff0c\u6700\u5927\u7684\u8d1f\u6574\u6570\u662f \uff0c\u6700\u5c0f\u7684\u6b63\u6574\u6570\u662f \uff0c\u6700\u5c0f\u7684\u975e\u8d1f\u6574\u6570\u662f \uff0c\u6700\u5927\u7684\u975e\u6b63\u6574\u6570\u662f .
2.\u82e5 .
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3. \u4e00\u4e2a\u5173\u4e8eb\u7684\u4e8c\u6b21\u4e09\u9879\u5f0f\u7684\u4e8c\u6b21\u9879\u7cfb\u6570\u662f-2\uff0c\u4e00\u6b21\u9879\u7cfb\u6570\u662f-0.5\uff0c\u5e38\u6570\u9879\u662f3\uff0c\u5219\u8fd9\u4e2a\u591a\u9879\u5f0f\u662f_____________.\u5355\u9879\u5f0f \uff0c \uff0c \u7684\u548c\u662f___________
4\uff0e\u4e0b\u5217\u5404\u6570\u4e2d\uff0c\u662f\u8d1f\u6570\u7684\u662f ( )
A. B. C. | -9 | D. \uff0e
5\uff0e\u7528\u56db\u820d\u4e94\u5165\u6cd5\u6309\u8981\u6c42\u5bf90.05019\u5206\u522b\u53d6\u8fd1\u4f3c\u503c\uff0c\u5176\u4e2d\u9519\u8bef\u7684\u662f\uff08 \uff09
A\uff0e0.1\uff08\u7cbe\u786e\u52300.1\uff09 B\uff0e0.05\uff08\u7cbe\u786e\u5230\u767e\u5206\u4f4d\uff09
C\uff0e0.05\uff08\u4fdd\u7559\u4e24\u4e2a\u6709\u6548\u6570\u5b57\uff09 D\uff0e0.0502\uff08\u7cbe\u786e\u52300.0001\uff09
6. .
7. .
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10.\u67d0\u98df\u54c1\u5382\u4ece\u751f\u4ea7\u7684\u888b\u88c5\u98df\u54c1\u4e2d\u62bd\u51fa\u6837\u54c120\u888b\uff0c\u68c0\u6d4b\u6bcf\u888b\u7684\u8d28\u91cf\u662f\u5426\u7b26\u5408\u6807\u51c6\uff0c\u8d85\u8fc7\u6216\u4e0d\u8db3\u7684\u90e8\u5206\u5206\u522b\u7528\u6b63\u3001\u8d1f\u6570\u6765\u8868\u793a\uff0c\u8bb0\u5f55\u5982\u4e0b\u8868\uff1a
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0 1 3 6
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11.(1)\u5df2\u77e5 ,\u6c42 \u7684\u503c. (2) \u5df2\u77e5 ,\u6c42 \u7684\u503c.
\u6838\u5fc3\u5b66\u4e60\u7cfb\u5217\uff08\u4e09\uff09
1. \u5316\u7b80\u4e0b\u5217\u5404\u5f0f\uff1a
(1)-(+2)= \uff1b(2)-(-15)= \uff1b (3)+[-(-2)]= .
2.\u5df2\u77e5 \uff0c\u5219 _______________.\u5982\u679c\u6709\u7406\u6570a\u3001b\u6ee1\u8db3|a|=5\uff0c|b|=4\uff0c\u4e14a<b\uff0c\u90a3\u4e48a= \uff0cb= .
3.\u5316\u7b80\uff1a(1) =________; (2) =________;(3) =_______ (4) =__________;(5) =__________.
4\uff0e\u5df2\u77e5 \uff0c\u5219\u4e0b\u5217\u7b49\u5f0f\u4e0d\u6210\u7acb\u7684\u662f\uff08 \uff09
A\uff0e B\uff0e C\uff0e D\uff0e
5\uff0e\u5c0f\u65b0\u51c6\u5907\u7528\u5982\u56fe8\u7684\u7eb8\u7247\u505a\u4e00\u4e2a\u6b63\u65b9\u4f53\u793c\u54c1\u76d2\uff0c\u4e3a\u4e86\u7f8e\u89c2\uff0c\u4ed6\u60f3\u5728\u516d\u4e2a\u6b63\u65b9\u5f62\u7eb8\u7247\u4e0a\u753b\u4e0a\u56fe\u6848\uff0c\u4f7f\u505a\u6210\u540e\u4e09\u7ec4\u5bf9\u9762\u7684\u56fe\u6848\u76f8\u540c\uff0c\u90a3\u4e48\u753b\u4e0a\u56fe\u6848\u540e\u6b63\u786e\u7684\u662f\uff08 \uff09
6. .
7. \u5df2\u77e5 \uff0c \uff0c\u6c42\uff1a .
8.\u89e3\u65b9\u7a0b\uff1a .
9.\u67d0\u5de5\u5382\u7b2c\u4e00\u8f66\u95f4\u6709 \u4eba\uff0c\u7b2c\u4e8c\u8f66\u95f4\u6bd4\u7b2c\u4e00\u8f66\u95f4\u4eba\u6570\u7684 \u5c1130\u4eba\uff0c\u90a3\u4e48
\uff081\uff09\u4e24\u4e2a\u8f66\u95f4\u5171\u6709\u591a\u5c11\u4eba\uff1f
\uff082\uff09\u5982\u679c\u4ece\u7b2c\u4e8c\u8f66\u95f4\u8c03\u51fa10\u4eba\u5230\u7b2c\u4e00\u8f66\u95f4\uff0c\u8c03\u52a8\u540e\uff0c\u7b2c\u4e00\u8f66\u95f4\u7684\u4eba\u6570\u6bd4\u7b2c\u4e8c\u8f66\u95f4\u591a\u591a\u5c11\u4eba\uff1f
10.\u5317\u4eac\u67d0\u5382\u548c\u4e0a\u6d77\u67d0\u5382\u540c\u65f6\u5236\u6210\u7535\u5b50\u8ba1\u7b97\u673a\u82e5\u5e72\u53f0\uff0c\u5317\u4eac\u5382\u53ef\u652f\u63f4\u5916\u573010\u53f0\uff0c\u4e0a\u6d77\u5382\u53ef\u652f\u63f4\u5916\u57304\u53f0\uff0c\u73b0\u5728\u51b3\u5b9a\u7ed9\u91cd\u5e868\u53f0\uff0c\u6c49\u53e36\u53f0\u3002\u5982\u679c\u4ece\u5317\u4eac\u8fd0\u5f80\u6c49\u53e3\u3001\u91cd\u5e86\u7684\u8fd0\u8d39\u5206\u522b\u662f4\u767e\u5143/\u53f0\u30018\u767e\u5143/\u53f0\uff0c\u4ece\u4e0a\u6d77\u8fd0\u5f80\u6c49\u53e3\u3001\u91cd\u5e86\u7684\u8fd0\u8d39\u5206\u522b\u662f3\u767e\u5143/\u53f0\u30015\u767e\u5143/\u53f0.
\uff081\uff09\u8bbe\u4e0a\u6d77\u5382\u8fd0\u5f80\u6c49\u53e3 \u53f0\uff0c\u7528 \u8868\u793a\u603b\u8fd0\u8d39 \uff08\u767e\u5143\uff09.
(2)\u82e5\u4ece\u4e0a\u6d77\u5382\u8fd0\u5f80\u6c49\u53e32\u53f0\uff0c\u603b\u8fd0\u8d39\u662f\u591a\u5c11\u5143?
\u9644\u52a0\u9898
11. \u89c2\u5bdf\u4e0b\u5217\u7b49\u5f0f\uff08\u7b49\u5f0f\u4e2d\u7684\u201c\uff01\u201d\u662f\u4e00\u79cd\u6570\u5b66\u8fd0\u7b97\u7b26\u53f7\uff09\uff0c1\uff01\uff1d1\uff0c2\uff01\uff1d2\u00d71\uff0c3\uff01\uff1d3\u00d72\u00d71\uff0c4\uff01\uff1d4\u00d73\u00d72\u00d71\uff0c\u2026\u2026\u8bd5\u8ba1\u7b97 \u7684\u503c.
\u6838\u5fc3\u5b66\u4e60\u7cfb\u5217\uff08\u56db\uff09
1.\uff0d \u7684\u76f8\u53cd\u6570\u7684\u76f8\u53cd\u6570\u662f________;\u76f8\u53cd\u6570\u662f\u5b83\u672c\u8eab\u7684\u6570\u662f________;\u5982\u679c\u4e00\u4e2a\u6570\u7684\u7edd\u5bf9\u503c\u7b49\u4e8e\u5b83\u672c\u8eab\uff0c\u8fd9\u6837\u7684\u6570\u662f_________.
2.\u5df2\u77e5 \u548c \u4e92\u4e3a\u76f8\u53cd\u6570\u4e14 \uff0c\u5219 _______\uff0c ________.
3. \u7684\u6307\u6570\u4e3a______\u5e95\u6570\u4e3a____\uff1b \u7684\u6307\u6570\u4e3a_____\u5e95\u6570\u4e3a_____.
4\uff0e\u4e0b\u5217\u5404\u7ec4\u4e2d\u7684\u4e24\u9879\uff0c\u5c5e\u4e8e\u540c\u7c7b\u9879\u7684\u662f\uff08 \uff09
A. \u4e0e B. \u4e0e C. \u4e0e D. \u4e0e
5\uff0e\u4e0b\u5217\u8bf4\u6cd5\u6b63\u786e\u7684\u662f\uff08 \uff09
A. \u4e24\u70b9\u4e4b\u95f4\u7684\u8fde\u7ebf\u4e2d\uff0c\u76f4\u7ebf\u6700\u77ed B.\u82e5P\u662f\u7ebf\u6bb5AB\u7684\u4e2d\u70b9\uff0c\u5219AP=BP
C. \u82e5AP=BP, \u5219P\u662f\u7ebf\u6bb5AB\u7684\u4e2d\u70b9 D. \u4e24\u70b9\u4e4b\u95f4\u7684\u7ebf\u6bb5\u53eb\u505a\u8005\u4e24\u70b9\u4e4b\u95f4\u7684\u8ddd\u79bb
6. .
7. .
8.\u89e3\u65b9\u7a0b\uff1a .
9.\u5149\u534e\u519c\u673a\u79df\u8d41\u516c\u53f8\u5171\u670950\u53f0\u8054\u5408\u6536\u5272\u673a\uff0c\u5176\u4e2d\u7532\u578b20\u53f0\uff0c\u4e59\u578b30\u53f0.\u73b0\u5c06\u8fd950\u53f0\u8054\u5408\u6536\u5272\u673a\u6d3e\u5f80A\u3001B\u4e24\u5730\u533a\u6536\u5272\u5c0f\u9ea6\uff0c\u5176\u4e2d30\u53f0\u6d3e\u5f80A\u5730\u533a\uff0c20\u53f0\u6d3e\u5f80B\u5730\u533a.
\u4e24\u5730\u533a\u4e0e\u8be5\u519c\u673a\u79df\u8d41\u516c\u53f8\u5546\u5b9a\u7684\u6bcf\u5929\u7684\u79df\u8d41\u4ef7\u683c\u89c1\u4e0b\u8868\uff1a
\u6bcf\u53f0\u7532\u578b\u6536\u5272\u673a\u7684\u79df\u91d1 \u6bcf\u53f0\u4e59\u578b\u6536\u5272\u673a\u7684\u79df\u91d1
A\u5730\u533a 1800\u5143 1600\u5143
B\u5730\u533a 1600\u5143 1200\u5143
\uff081\uff09\u8bbe\u6d3e\u5f80A\u5730\u533ax\u53f0\u4e59\u578b\u8054\u5408\u6536\u5272\u673a\uff0c\u79df\u8d41\u516c\u53f8\u8fd950\u53f0\u8054\u5408\u6536\u5272\u673a\u4e00\u5929\u83b7\u5f97\u7684\u79df\u91d1\u4e3ay(\u5143)\uff0c\u5199\u51fa\u7528x\u7684\u5f0f\u5b50\u8868\u793ay\u7684\u5173\u7cfb\u5f0f.
\uff082\uff09\u5206\u522b\u6c42\u51fa\u5f53 \u7b49\u4e8e28\u300129\u300130\u65f6\u79df\u91d1y\u7684\u503c.
10.\u67d0\u5546\u5e97\u79ef\u538b\u4e86 \u4ef6\u67d0\u79cd\u5546\u54c1\uff0c\u4e3a\u4f7f\u8fd9\u6279\u8d27\u7269\u5c3d\u5feb\u8131\u624b\uff0c\u8be5\u5546\u5e97\u91c7\u53d6\u4e86\u5982\u4e0b\u9500\u552e\u65b9\u6848\uff1a\u5148\u5c06\u4ef7\u683c\u63d0\u5347\u5230\u539f\u6765\u7684 \u500d\uff0c\u518d\u4f5c\u4e09\u6b21\u964d\u4ef7\u5904\u7406\uff0c\u7b2c\u4e00\u6b21\u964d\u4ef7 \uff0c\u7b2c\u4e8c\u6b21\u964d\u4ef7 \uff0c\u7b2c\u4e09\u6b21\u518d\u964d\u4ef7 \uff0c\u4e09\u6b21\u964d\u4ef7\u5904\u7406\u9500\u552e\u60c5\u51b5\u5982\u4e0b\uff1a
\u964d\u4ef7\u6b21\u6570 \u4e00 \u4e8c \u4e09
\u9500\u552e\u4ef6\u6570
\u4e00\u62a2\u800c\u5149
\uff081\uff09\u7b2c\u4e09\u6b21\u964d\u4ef7\u540e\u7684\u4ef7\u683c\u5360\u539f\u6765\u4ef7\u683c\u7684\u767e\u5206\u6bd4\u4e3a\u591a\u5c11\uff1f
\uff082\uff09\u8be5\u5546\u54c1\u6309\u65b0\u9500\u552e\u65b9\u6848\u9500\u552e\uff0c\u76f8\u6bd4\u539f\u4ef7\u552e\u5b8c\uff0c\u54ea\u4e00\u79cd\u65b9\u6848\u66f4\u76c8\u5229\uff1f
\u9644\u52a0\u9898
11.\u5df2\u77e5a\u3001b\u90fd\u4e3a\u6709\u7406\u6570\uff0c\u6ee1\u8db3\u4ec0\u4e48\u6761\u4ef6\u65f6\uff0ca+b\u4e0ea-b\u4e92\u4e3a\u76f8\u53cd\u6570.
\u6838\u5fc3\u5b66\u4e60\u7cfb\u5217\uff08\u4e94\uff09
1.\u8ba1\u7b97\uff1a = .\uff08\u7ed3\u679c\u7528\u79d1\u5b66\u8bb0\u6570\u6cd5\u8868\u793a\uff09.\u5706\u5468\u7387=3.141592653\u2026\uff0c\u5982\u679c\u53d6\u8fd1\u4f3c\u65703.142\uff0c\u5b83\u7cbe\u786e\u5230 \u4f4d\uff0c\u6709\u6548\u6570\u5b57\u662f .
2.\u5982\u679cn\u4e3a\u6b63\u6574\u6570\uff0c\u5219(\uff0d1)2n =______\uff0c (\uff0d1) 2n\uff0b1=______.
3.\u8981\u4f7f\u591a\u9879\u5f0f \u4e0d\u542b\u4e09\u6b21\u9879\u53ca\u4e00\u6b21\u9879\uff0c\u5219 _________ ________.
4\uff0e\u82e5a\u662f\u6709\u7406\u6570\uff0c\u52192a\u4e0e3a\u7684\u5927\u5c0f\u5173\u7cfb\u662f( ).
A. 2a>3a B. 2a<3a C. 2a=3a D. \u4e0d\u80fd\u786e\u5b9a\uff0e
5. 2007\u5e7410\u670831\u65e517\u65f625\u5206\uff0c\u6211\u56fd\u7684\u9996\u9897\u7ed5\u6708\u4eba\u9020\u536b\u661f\u5ae6\u5a25\u4e00\u53f7\u7b2c\u4e09\u6b21\u8fd1\u5730\u70b9\u53d8\u8f68\uff0c\u536b\u661f\u8fdc\u5730\u70b9\u9ad8\u5ea6\u753112\u4e07\u4f59\u516c\u91cc\u63d0\u9ad8\u523037\u4e07\u4f59\u516c\u91cc\uff0c\u8fdb\u5165114\u5c0f\u65f6\u5730\u6708\u8f6c\u79fb\u8f68\u9053. \u5176\u4e2d\u6570\u636e\u201c37\u4e07\u4f59\u516c\u91cc\u201d\u7528\u79d1\u5b66\u8bb0\u6570\u6cd5\u8868\u793a\u6b63\u786e\u7684\u662f ( )
A. \u4f59\u516c\u91cc B. \u4f59\u516c\u91cc C. \u4f59\u516c\u91cc D. \u4f59\u516c\u91cc
6.\uff0823 \uff0d14 \uff0d38 \uff09\u00d7(\uff0d48).
7.\u5df2\u77e5\u591a\u9879\u5f0fA\u51cf\u53bb \u5f97 \uff0c\u6c42\u591a\u9879\u5f0fA.
8.\u5982\u679c\u65b9\u7a0b \u7684\u89e3\u4e0e\u65b9\u7a0b \u7684\u89e3\u76f8\u540c\uff0c\u6c42\u5f0f\u5b50 \u7684\u503c.
9.\u4e00\u8258\u8239\u4ece\u7532\u7801\u5934\u5230\u4e59\u7801\u5934\u987a\u6d41\u884c\u9a76\uff0c\u7528\u4e862\u5c0f\u65f6\uff1b\u4ece\u4e59\u7801\u5934\u8fd4\u56de\u7532\u7801\u5934\u9006\u6d41\u884c\u9a76\uff0c\u7528\u4e862.5\u5c0f\u65f6.\u5df2\u77e5\u6c34\u6d41\u7684\u901f\u5ea6\u662f3\u5343\u7c73/\u65f6\uff0c\u6c42\u8239\u5728\u9759\u6c34\u4e2d\u7684\u901f\u5ea6.
10.\u516c\u56ed\u95e8\u7968\u4ef7\u683c\u89c4\u5b9a\u5982\u4e0b\u8868\uff1a
\u8d2d\u7968\u5f20\u6570 1\uff5e50\u5f20 51\uff5e100\u5f20 100\u5f20\u4ee5\u4e0a
\u6bcf\u5f20\u7968\u7684\u4ef7\u683c 13\u5143 11\u5143 9\u5143
\u67d0\u6821\u521d\u4e00\uff081\uff09\u3001\uff082\uff09\u4e24\u4e2a\u73ed\u5171104\u4eba\u53bb\u6e38\u516c\u56ed\uff0c\u5176\u4e2d\uff081\uff09\u73ed\u4eba\u6570\u8f83\u5c11\uff0c\u4e0d\u8db350\u4eba\u3002\u7ecf\u4f30\u7b97\uff0c\u5982\u679c\u4e24\u4e2a\u73ed\u90fd\u4ee5\u73ed\u4e3a\u5355\u4f4d\u8d2d\u7968\uff0c\u5219\u4e00\u5171\u5e94\u4ed81240\u5143\uff0c\u95ee\uff1a
(1)\u4e24\u73ed\u5404\u6709\u591a\u5c11\u5b66\u751f\uff1f
(2)\u5982\u679c\u4e24\u73ed\u8054\u5408\u8d77\u6765\uff0c\u4f5c\u4e3a\u4e00\u4e2a\u56e2\u4f53\u8d2d\u7968\uff0c\u53ef\u7701\u591a\u5c11\u94b1\uff1f
(3)\u5982\u679c\u521d\u4e00\uff081\uff09\u73ed\u5355\u72ec\u7ec4\u7ec7\u53bb\u6e38\u516c\u56ed\uff0c\u4f5c\u4e3a\u7ec4\u7ec7\u8005\u7684\u4f60\u5c06\u5982\u4f55\u8d2d\u7968\u624d\u6700\u7701\u94b1\uff1f
\u9644\u52a0\u9898
11.\u5b9e\u6570a\u3001b\u3001c\u5728\u6570\u8f74\u4e0a\u7684\u4f4d\u7f6e\u5982\u56fe\u6240\u793a\uff0c\u5316\u7b80|a|-|a+b|+|c-a|+|b-c|.
\u6838\u5fc3\u5b66\u4e60\u7cfb\u5217\uff08\u516d\uff09
1.\u5316\u7b80\uff1a ____________, =_______.
2\uff0e\u5df2\u77e5 \u662f\u540c\u7c7b\u9879\uff0c\u5219 \u7b49\u4e8e ________\uff0e
3\uff0e\u5728\u65b9\u7a0b3x\uff0d \uff1d5\u4e2d\uff0c\u7528\u542bx\u7684\u4ee3\u6570\u5f0f\u8868\u793ay\u4e3a\uff1ay\uff1d \uff0c\u5f53x\uff1d3\u65f6\uff0cy\uff1d .
4. \u5728\u4ee3\u6570\u5f0f \u3001 \u3001 \u3001 \u3001 \u4e2d\uff0c\u5355\u9879\u5f0f\u7684\u4e2a\u6570\u662f( )
A\uff0e1 B\uff0e2 C\uff0e3 D\uff0e
5.\u8db3\u7403\u6bd4\u8d5b\u7684\u8ba1\u5206\u89c4\u5219\uff1a\u80dc\u4e00\u573a\u5f973\u5206\uff0c\u5e73\u4e00\u573a\u5f971\u5206\uff0c\u8d1f\u4e00\u573a\u5f970\u5206\u3002\u4e00\u4e2a\u961f\u625314\u573a\u6bd4\u8d5b\uff0c\u8d1f5\u573a\u5171\u5f9719\u5206\uff0c\u90a3\u4e48\u8fd9\u4e2a\u961f\u80dc\u4e86\uff08 \uff09\u573a.
\uff08A\uff093 \uff08B\uff094 \uff08C\uff095 \uff08D\uff096
6. .
7.\u82e5|x|=2\uff0c\u6c42\u4e0b\u5f0f\u7684\u503c\uff1a3x2\uff0d\u30147x2\uff0d2\uff08x2\uff0d3x\uff09\uff0d2x\u3015.
8.\u89e3\u65b9\u7a0b\uff1a .
9\uff0e\u67d0\u8f66\u95f422\u540d\u5de5\u4eba\u751f\u4ea7\u87ba\u6bcd\u548c\u87ba\u6bcd\uff0c\u6bcf\u4eba\u6bcf\u5929\u5e73\u5747\u751f\u4ea7\u87ba\u94891200\u4e2a\u6216\u87ba\u6bcd2000\u4e2a\uff0c\u4e00\u4e2a\u87ba\u9489\u8981\u914d\u4e24\u4e2a\u87ba\u6bcd\uff0c\u4e3a\u4e86\u4f7f\u6bcf\u5929\u7684\u4ea7\u54c1\u521a\u597d\u914d\u5957\uff0c\u5e94\u8be5\u5206\u914d\u591a\u5c11\u540d\u5de5\u4eba\u751f\u4ea7\u87ba\u9489\uff0c\u591a\u5c11\u540d\u5de5\u4eba\u751f\u4ea7\u87ba\u6bcd\uff1f
10.\u5546\u573a\u8ba1\u5212\u62e8\u6b3e9\u4e07\u5143\uff0c\u4ece\u5382\u5bb6\u8d2d\u8fdb50\u53f0\u7535\u89c6\u673a\uff0c\u5df2\u77e5\u8be5\u5382\u5bb6\u751f\u4ea7\u4e09\u79cd\u4e0d\u540c\u578b\u53f7\u7684\u7535\u89c6\u673a\uff0c\u51fa\u573a\u4ef7\u5206\u522b\u4e3a\u7532\u79cd\u6bcf\u53f01500\u5143\uff0c\u4e59\u79cd\u6bcf\u53f02100\u5143\uff0c\u4e19\u79cd\u6bcf\u53f02500\u5143\uff0e
\uff081\uff09\u82e5\u5546\u573a\u540c\u65f6\u8d2d\u8fdb\u5176\u4e2d\u4e24\u79cd\u4e0d\u540c\u578b\u53f7\u7684\u7535\u89c6\u673a\u517150\u53f0\uff0c\u7528\u53bb9\u4e07\u5143\uff0c\u8bf7\u4f60\u7814\u7a76\u4e00\u4e0b\u5546\u573a\u7684\u8fdb\u8d27\u65b9\u6848\uff1b
\uff082\uff09\u82e5\u5546\u573a\u9500\u552e\u4e00\u53f0\u7532\u79cd\u7535\u89c6\u673a\u53ef\u83b7\u5229150\u5143\uff0c\u9500\u552e\u4e00\u53f0\u4e59\u79cd\u7535\u89c6\u673a\u53ef\u83b7\u5229200\u5143\uff0c\u9500\u552e\u4e00\u53f0\u4e19\u79cd\u7535\u89c6\u673a\u53ef\u83b7\u5229250\u5143\uff0e\u5728\u540c\u65f6\u8d2d\u8fdb\u4e24\u79cd\u4e0d\u540c\u578b\u53f7\u7684\u7535\u89c6\u673a\u7684\u65b9\u6848\u4e2d\uff0c\u4e3a\u4f7f\u9500\u552e\u65f6\u83b7\u5229\u6700\u591a\uff0c\u8be5\u9009\u62e9\u54ea\u79cd\u8fdb\u8d27\u65b9\u6848\uff1f
\u9644\u52a0\u9898
11. \u6bd4\u5927\u5c0f\uff1a\u246012____21\uff1b\u246123____32\uff1b\u246234____43\uff1b\u246345____54\uff1b\u246456____65\u2026\u2026
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2. \u548c \u4e92\u4e3a\u76f8\u53cd\u6570\u4e14 \uff0c\u5219 _______\uff0c _______.
3.\u4e00\u5929\u4e2d\u67098.64\u00d7104\u79d2\uff0c\u4e00\u5e74\u5982\u679c\u6309365\u5929\u8ba1\u7b97\uff0c\u4e00\u5e74\u4e2d\u6709 _________\u79d2.\uff08\u7528\u79d1\u5b66\u8bb0\u6570\u6cd5\u8868\u793a\u7ed3\u679c\u4fdd\u7559\u4e24\u4e2a\u6709\u6548\u6570\u5b57\uff09
4.\u4ee5\u4e0b\u8bf4\u6cd5\u6b63\u786e\u7684\u662f ( )
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C. \u5c0f\u534e\u7684\u4f53\u91cd\u589e\u957f\u4e86-2 kg\u8868\u793a\u5c0f\u534e\u7684\u4f53\u91cd\u51cf\u5c112 kg D. \u591a\u9879\u5f0f \u7684\u6b21\u6570\u662f3
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A. B.
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2.\u591a\u9879\u5f0f \u52a0\u4e0a _________\u7b49\u4e8e .
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4. \u7edd\u5bf9\u503c\u5927\u4e8e3\u800c\u5c0f\u4e8e7\u7684\u6240\u6709\u6574\u6570\u4e4b\u548c\u662f\uff08 \uff09.
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6.\uff0d24\u00d7 .
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8.\u89e3\u65b9\u7a0b\uff1a .
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11. \u89e3\u65b9\u7a0b\uff1a
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2\uff0e\u5355\u9879\u5f0f \u662f5\u6b21\u5355\u9879\u5f0f\uff0c\u5219x=________\uff0e\u4e00\u4e2a\u5355\u9879\u5f0f\u542bx,y\u8fd9\u4e24\u4e2a\u5b57\u6bcd,\u5e76\u4e14\u5b83\u7684\u7cfb\u6570\u4e3a \uff0c\u6b21\u6570\u4e3a4\u6b21\uff0c\u8bd5\u5199\u51fa\u8fd9\u4e2a\u5355\u9879\u5f0f_________________.
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4.\u89e3\u65b9\u7a0b \u65f6\uff0c\u53bb\u5206\u6bcd\u6b63\u786e\u7684\u662f\uff08 \uff09\uff0e
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6. .
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10. \u5168\u7403\u901a\u624b\u673a\u5361\u6536\u8d39\u6bcf\u5206\u949f0.20\u5143,\u6708\u79df\u8d39\u6bcf\u670820\u5143;\u795e\u5dde\u884c\u624b\u673a\u5361\u6ca1\u6709\u6708\u79df\u8d39,\u6bcf\u5206\u949f0.40\u5143,\u5047\u5982\u4f60\u4e70\u4e86\u4e00\u90e8\u624b\u673a:
(1)\u82e5\u4f60\u4f30\u8ba1\u6bcf\u6708\u901a\u8bdd\u65f6\u95f4\u4e3a75\u5206,\u4f60\u5e94\u9009\u62e9\u54ea\u79cd\u624b\u673a\u6536\u8d39\u5361?
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1.\u5199\u51fa\u4e00\u4e2a\u4e00\u5143\u4e00\u6b21\u65b9\u7a0b\uff0c\u4f7f\u5b83\u7684\u89e3\u4e3a\u201523 \uff0c\u672a\u77e5\u6570\u7684\u7cfb\u6570\u4e3a\u6b63\u6574\u6570\uff0c\u65b9\u7a0b\u4e3a___________.
2.\u82e5 \u662f\u4e00\u5143\u4e00\u6b21\u65b9\u7a0b\uff0c\u5219m=__________.\u5173\u4e8e \u7684\u65b9\u7a0b3 +5=0\u4e0e3 +3 =1\u7684\u89e3\u76f8\u540c\uff0c\u5219 =_________.
3.\u4e00\u5546\u5e97\u628a\u67d0\u5546\u54c1\u6309\u6807\u4ef7\u7684\u4e5d\u6298\u51fa\u552e\u4ecd\u53ef\u83b7\u5f9720%\u7684\u5229\u6da6\u7387\uff0c\u82e5\u8be5\u5546\u54c1\u7684\u8fdb\u4ef7\u662f\u6bcf\u4ef630\u5143\uff0c\u5219\u6807\u4ef7\u662f\u6bcf\u4ef6___________\u5143\uff0e
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6.10\uff0d \uff1b
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8. \u89e3\u65b9\u7a0b\uff1a .
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7.\u5316\u7b80\uff1a .
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(1)\u524d8\u573a\u6bd4\u8d5b\u4e2d,\u8fd9\u652f\u7403\u961f\u5171\u80dc\u4e86\u591a\u5c11\u573a?
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1. \u7684\u7cfb\u6570\u662f_____________\uff0c\u6b21\u6570\u662f_____________. \u4e00\u4e2a\u5173\u4e8eb\u7684\u4e8c\u6b21\u4e09\u9879\u5f0f\u7684\u4e8c\u6b21\u9879\u7cfb\u6570\u662f-2\uff0c\u4e00\u6b21\u9879\u7cfb\u6570\u662f-0.5\uff0c\u5e38\u6570\u9879\u662f3\uff0c\u5219\u8fd9\u4e2a\u591a\u9879\u5f0f\u662f_____________\u3002
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6. 6\u00f7\uff08\uff0d2\uff09 \uff08\uff0d4\uff09\u00d7 .
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(1)__________, (2)__________, (3)_________.
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1\uff0e\u8ba1\u7b97\uff1a ___________________\uff0e
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6. .
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9.\u5982\u56fe,\u5df2\u77e5C\u662fAB\u7684\u4e2d\u70b9,D\u662fAC\u7684\u4e2d\u70b9,E\u662fBC\u7684\u4e2d\u70b9.
¬(1)\u82e5AB=18cm,\u6c42DE\u7684\u957f;(2)\u82e5CE=5cm,\u6c42DB\u7684\u957f.
10.\u5982\u56fe,\u5df2\u77e5\u76f4\u7ebfAB\u548cCD\u76f8\u4ea4\u4e8eO\u70b9,\u2220COE\u662f\u76f4\u89d2,
OF \u5e73\u5206\u2220AOE, \u2220COF=34\u00b0,\u6c42\u2220BOD\u7684\u5ea6\u6570.
\u9644\u52a0\u9898
11.\u82e5\u65b9\u7a0b \u7684\u89e3\u76f8\u540c\uff0c\u6c42a\u7684\u503c.
\u6838\u5fc3\u7cfb\u5217\u5b66\u4e60\uff08\u5341\u4e94\uff09
1\uff0e\u7528\u4e00\u526f\u4e09\u89d2\u5c3a\uff0c\u53ef\u4ee5\u4f5c\u51fa\u5927\u4e8e0\u00b0\u800c\u5c0f\u4e8e180\u00b0\u7684\u89d2\u5171 \u4e2a\uff0e\u5728\u4e00\u5f20\u8584\u5706\u997c\u4e0a\u520710\u5200\uff08\u4e0d\u91cd\u53e0\u5207\uff09\uff0c\u6700\u591a\u53ef\u5f97\u5230 \u5757\u5c0f\u997c\uff0e
2\uff0e\u82e5\u5e73\u9762\u5185\u6709 \uff0c \uff0c \u4e09\u70b9\uff0c\u8fc7\u5176\u4e2d\u4efb\u610f\u4e24\u70b9\u753b\u76f4\u7ebf\uff0c\u6700\u591a\u53ef\u4ee5\u753b_________\u6761\u76f4\u7ebf\uff0c\u6700\u5c11\u53ef\u4ee5\u753b_________\u6761\u76f4\u7ebf\uff0e
3\uff0e\u89c2\u5bdf\u4e0b\u5217\u5404\u6b63\u65b9\u5f62\u56fe\u6848\uff0c\u6bcf\u6761\u8fb9\u4e0a\u6709 \u4e2a\u5706\u70b9\uff0c\u6bcf\u4e2a\u56fe\u6848\u4e2d\u5706\u70b9\u7684\u603b\u6570\u662f \uff0e
\u6309\u6b64\u89c4\u5f8b\u63a8\u65ad\u51fa \u4e0e \u7684\u5173\u7cfb\u5f0f\u4e3a_____________
4.\u82e5\u4e00\u4e2a\u7acb\u4f53\u56fe\u5f62\u4ece\u6b63\u9762\u770b\u3001\u4ece\u5de6\u9762\u770b\u90fd\u662f\u957f\u65b9\u5f62,\u4ece\u4e0a\u9762\u770b\u662f\u5706\uff0c\u5219\u8fd9\u4e2a\u56fe\u5f62\u53ef\u80fd\uff08 \uff09
A\uff0e\u5706\u67f1 B \u7403 C \u5706\u9525 D \u4e09\u68f1\u9525
5.\u4e8c\u4e2d\u5b66\u8fdb\u884c\u4e49\u52a1\u52b3\u52a8\uff0c\u53bb\u7532\u5904\u52b3\u52a8\u7684\u670930\u4eba\uff0c\u53bb\u4e59\u5904\u52b3\u52a8\u7684\u670924\u4eba\uff0c\u4ece\u4e59\u5904\u8c03\u4e00\u90e8\u5206\u4eba\u5230\u7532\u5904\uff0c\u4f7f\u7532\u5904\u4eba\u6570\u662f\u4e59\u5904\u4eba\u6570\u76842\u500d\uff0c\u82e5\u8bbe\u5e94\u4ece\u4e59\u5904\u8c03x\u4eba\u5230\u7532\u5904\uff0c\u5219\u6240\u5217\u65b9\u7a0b\u662f ( )
\uff08A\uff092\uff0830+x\uff09=24\uff0dx \uff08B\uff0930+x=2\uff0824\uff0dx\uff09 \uff08C\uff0930\uff0dx=2\uff0824+x\uff09 \uff08D\uff092\uff0830\uff0dx\uff09=24+x
6.\uff0d14\uff0d [2\uff0d(\uff0d3)2] .
7.\u5148\u5316\u7b80,\u518d\u6c42\u503c\uff1a 2(xy\uff0dxy2+3)\uff0d(\uff0d4xy2+xy\uff0d1)\uff0c\u5176\u4e2dx=-4\uff0cy= .
8.\u89e3\u65b9\u7a0b\uff1a .
9\uff0e\u5982\u56fe9\uff0c\u5c06\u957f\u65b9\u5f62\u7eb8\u7247\u6cbfAC\u5bf9\u6298\uff0c\u4f7f\u70b9B\u843d\u5728B\u2032\uff0cCF\u5e73\u5206
\u2220B\u2032CE\uff0c\u6c42\u2220ACF\u7684\u5ea6\u6570\uff0e
10\uff0e\u5982\u56fe10\u662f\u4e00\u5ea7\u7b80\u6613\u7684\u5de5\u623f\u5206\u522b\u4ece\u6b63\u9762\u3001\u4e0a\u9762\u548c\u5de6\u9762\u770b\u6240\u770b\u5230\u7684\u56fe\u5f62\uff0c\u4f60\u80fd\u60f3\u8c61\u51fa\u8fd9\u5ea7\u7b80\u6613\u5de5\u623f\u7684\u6837\u5b50\u5417\uff1f\u8bf7\u628a\u5b83\u753b\u51fa\u6765\uff0e
\u9644\u52a0\u9898
11. \u548c\u5c1a\u5403\u9992\u5934\uff08\u4e2d\u56fd\u53e4\u9898\uff09
\u5927\u548c\u5c1a\u6bcf\u4eba\u54034\u4e2a\uff0c\u5c0f\u548c\u5c1a4\u4eba\u54031\u4e2a\u3002\u6709\u5927\u5c0f\u548c\u5c1a100\u4eba\uff0c\u5171\u5403\u4e86100\u4e2a\u9992\u5934\u3002\u5927\u3001\u5c0f\u548c\u5c1a\u5404\u51e0\u4eba\uff1f\u5404\u5403\u591a\u5c11\u9992\u5934\uff1f0|\u8bc4\u8bba\u6c42\u52a9\u77e5\u53cbwakakawoniu |\u4e09\u7ea7\u91c7\u7eb3\u738712%\u64c5\u957f\u9886\u57df\uff1a\u6682\u672a\u5b9a\u5236
\u6309\u9ed8\u8ba4\u6392\u5e8f|\u6309\u65f6\u95f4\u6392\u5e8f \u5176\u4ed6\u56de\u7b54 \u51714\u67612012-11-04 15:53xx\u80e1\u6768xx| \u4e8c\u7ea7\uff0e\uff0e\uff0e\uff0e\u65e5\u5386\u4e0a\u7237\u7237\u751f\u65e5\u90a3\u59294\u4e2a\u65e5\u671f\u7684\u548c\u4e3a80,\u4f60\u80fd\u8bf4\u51fa\u7237\u7237\u7684\u751f\u65e5\u662f\u54ea\u5929\u5417
\u8bbe\uff0c\u65e5\u671f\u662fX \u4e0a\u9762\u7684\u662fX-7\uff0c\u4e0b\u9762\u7684\u662fX+7\uff0c\u5de6\u8fb9\u7684\u662fX-1\uff0c\u53f3\u8fb9\u7684\u662fX+1 \u6240\u4ee5\uff0cX-7+X+7+X+1+X-1=80 X=20 \u7b54\uff1a20\u65e5\u30022|\u8bc4\u8bba\u67e5\u770b\u66f4\u591a\u5176\u4ed6\u56de\u7b54
\u7b49
矩形=长方形
这个应该知道吧
棱柱的表面展开图是由（矩形）和（三角形）连成的。圆柱的表面展开图是由（矩形）和（圆形）连成的。圆锥的表面展开图是是由（圆形）和（扇形）连成的。
肯定对
绛旓細鍏朵粬绫讳技闂2010-01-17 涓冨勾绾т笂鏁板搴旂敤棰樺強绛旀70閬 2092 2014-02-16 涓冨勾绾т笂鍐岀殑鏁板搴旂敤棰60閬 搴旂敤棰樺瓧鏁板湪20瀛楀乏鍙 蹇呭甫绛... 38 2014-12-14 106椤祣108椤涓冨勾绾т笂鍐屾暟瀛涔︺傝鑻辨潗鏁欑▼绛旀銆傛湁蹇呴噰绾... 5 2020-06-15 蹇呴噰绾虫暟瀛︿负浣曡鍑芥暟涓嶈兘鍐欐垚鎴戣繖鏍?涓轰綍涓瀹氳鍜屽彸涓婅閭ｄ釜鍏......
绛旓細涓銆佷负浠涔20鍙-20锛屼綘杩欐牱鐞嗚В锛氬師寮忥細3x+20=4x-25 ,涓よ竟鍑20 3X+20-20=4X-25-20 3X+0=4X-25-20,绉婚」灏辨槸杩欎釜鎰忔 浜屻4X鍙樹负-4X涔熸槸涓鏍风殑鎰忔 鍘熷紡锛3x+20=4x-25 3X+20-4X=4X-25-4X
绛旓細2013-07-17 浜烘暀鐗堝垵涓暟瀛︾粌涔犲唽鍝嚑绉嶅ソ?瑕佹湁闅惧害鐨 164 2015-04-04 涓冨勾绾ф暟瀛鎯冲仛鍋氶毦棰,璇烽棶浠涔堢粌涔犲唽濂,鏈濂芥帹鑽愪袱鏈,涓鏈湁... 12 2013-02-23 鎴戠殑闂璺熷ス宸笉澶,灏辨槸鑻辫鍜屾暟瀛﹀樊!璇枃鐨勪綔鏂囦笉鑳芥彁楂樸傜幇... 8 2011-10-17 鎺ㄨ崘涓鏈垵涓暟瀛﹂毦棰樼粌涔犲唽 40 鏇村绫讳技闂 > 涓...
绛旓細灏忚埞鐢盇娓埌B娓『娴侀渶瑕6灏忔椂锛岀敱B娓埌A娓嗘祦闇瑕8灏忔椂锛屼竴澶╋紝灏忚埞浠庢棭鏅6鏃剁敱A娓嚭鍙戣鑷矪娓椂锛屽彂鐜颁竴鏁戠敓鍦堝湪閫斾腑鎺夎惤姘翠腑锛岀珛鍒昏繑鍥烇紝1灏忔椂鍚庢壘鍒版晳鐢熷湀銆傞棶锛氾紙1锛夎嫢灏忚埞鎸夋按娴侀熷害鐢盇娓紓鍒癇娓渶瑕佸灏戞椂闂达紵锛2锛夋晳鐢熷湀鏄綍鏃舵帀鍏ユ按涓殑锛熺瓟妗(1)48灏忔椂銆傦紙姘撮+鑸归燂級*6=锛堣埞閫-姘...
绛旓細鍏朵粬绫讳技闂 2013-08-27 鍒濅竴鏁板涓婂唽鐨勯噸鐐归鍨 7 2010-03-13 涓冨勾绾鏁板涓婂唽搴旂敤棰樺強绛旀20閬!!! 385 2010-01-17 涓冨勾绾т笂鏁板搴旂敤棰樺強绛旀70閬 2095 2012-08-16 涓冨勾绾т笂鍐屾暟瀛闅鹃100棰,瑕佹湁绛旀鐨 331 2012-02-10 涓冨勾绾т笂鍐屾暟瀛﹁绠楅鍙婄瓟妗,鍏150閬 1787 2011-08-15 涓冨勾绾т笂鍐屾暟瀛︾粌涔...
绛旓細涓冨勾绾ф暟瀛︿笂鍐鏈夌悊鏁板強鍏惰繍绠楄瘯棰 (鏃堕棿锛120鍒嗛挓銆婊″垎锛150鍒)涓銆侀夋嫨棰(鏈ぇ棰樺叡15灏忛锛屾瘡灏忛3鍒嗭紝鍏45鍒)1.濡傛灉鐢+0.02鍏嬭〃绀轰竴鍙 涔掍箵鐞 璐ㄩ噺瓒呭嚭鏍囧噯璐ㄩ噺0.02鍏嬶紝閭ｄ箞涓鍙箳涔撶悆璐ㄩ噺浣庝簬鏍囧噯璐ㄩ噺0.02鍏嬭浣( )A.-0.02鍏 B.+0.02鍏 C.0鍏 D.+0.04鍏 2.(瀹佹尝涓冩敼缂...
绛旓細绁濅綘 涓冨勾绾ф暟瀛 鏈熸湯鑰冭瘯鍙栧緱濂芥垚缁,鏈熷緟浣犵殑鎴愬姛!鎴戞暣鐞嗕簡鍏充簬涓冨勾绾ф暟瀛︿笂鍐鏈熸湯璇曢浜烘暀鐗,甯屾湜瀵瑰ぇ瀹舵湁甯姪! 涓冨勾绾ф暟瀛︿笂鍐屾湡鏈瘯棰 涓銆侀夋嫨棰:姣忓皬棰3鍒,鍏20鍒 1.锕8鐨勭浉鍙嶆暟鏄( ) A.锕8 B.8 C. D. 2.涓嬪垪璁＄畻缁撴灉,閿欒鐨勬槸( ) A.(锕3)脳(锕4)脳(锕 )=锕3 B.(锕 )脳(锕8)...
绛旓細宸茬煡(m-2)x鐨剕m|-1娆℃柟=1鏄竴鍏冧竴娆℃柟绋,姹俶.瑙ｏ細鍥犱负(m-2)x鐨剕m|-1娆℃柟=1鏄竴鍏冧竴娆℃柟绋 鏁咃細|m|-1=1锛屼笖m-2鈮0 鏁咃細m=卤2锛屼笖m鈮2 鏁咃細m=-2 2.灏忔槑鍜屽皬鍗庝粖骞寸殑骞撮緞鍒嗗埆鏄25宀佸拰9宀,浠涔堟椂鍊欏皬鏄庣殑骞撮緞鏄皬鍗庡勾榫勭殑2鍊?瑙ｏ細璁緓骞村悗锛屽皬鏄庣殑骞撮緞鏄皬鍗庡勾榫勭殑2鍊 鍥犱负x...
绛旓細鍋跺湪鐧惧害鍜屼綘鑱婁簡 涓冨勾绾ф暟瀛︿笂鍐搴旂敤棰樻祴璇曡瘯棰 锛堝垎鍊硷細100 鏃堕棿锛90鍒嗭級鍒楁柟绋嬭В搴旂敤棰橈紙姣忛10鍒嗭紝鍏100鍒嗭級鏌愬晢搴楀嚭鍞敳銆佷箼涓ょ鎴愯。锛屽叾涓敳绉嶆垚琛ｅ崠浠120鍏冪泩鍒20% 锛屼箼绉嶆垚琛ｅ崠浠蜂篃鏄120鍏冧絾浜忔崯20% 锛岄棶璇ュ晢搴楀湪鏈閿鍞腑瀹為檯涓婃槸鐩堣繕鏄簭锛岀泩鎴栦簭澶氬皯閽憋紵2锛庣敳銆佷箼涓や汉鍒嗗埆鍦ㄧ浉...
绛旓細绗叚棰橈細璁句箼杞︾殑閫熷害涓簒km/h,鍒欑敳杞︾殑閫熷害涓猴紙2x+20锛塳m/h.1/2x+1/2(2x+20)=298.x=192 2x+20=2涔192+20=404 绗崄棰橈細鍒嗘瀽锛氱涓娆＄浉璺36km鏃,涓や汉鏄浉瀵硅岃,杩樻湭鏇剧浉閬囪繃锛涚浜屾鐩歌窛36km鏃,涓や汉鏄浉鑳岃岃,宸茬粡鐩搁亣杩囦簡.瑙ｆ硶涓锛氫粠10鏃跺埌12鏃剁帇鍔,闄堝钩涓や汉鍏辫椹36+36=72...
