初二上册数学50道奥数题及答案 20道初二奥数题及答案(要有解题过程)
\u521d\u4e00\u6570\u5b66\u4e0a\u518c\u5965\u6570\u9898\u53ca\u7b54\u6848\uff0850\u9053\u4ee5\u4e0a\uff09\u4e00\u3001\u9009\u62e9\u9898\uff08\u6bcf\u98981\u5206\uff0c\u517110\u5206\uff09
1\uff0e\u5982\u679ca\uff0cb\u90fd\u4ee3\u8868\u6709\u7406\u6570\uff0c\u5e76\u4e14a\uff0bb=0\uff0c\u90a3\u4e48 ( )
A\uff0ea\uff0cb\u90fd\u662f0\uff0e B\uff0ea\uff0cb\u4e4b\u4e00\u662f0\uff0eC\uff0ea\uff0cb\u4e92\u4e3a\u76f8\u53cd\u6570\uff0eD\uff0ea\uff0cb\u4e92\u4e3a\u5012\u6570\uff0e
2\uff0e\u4e0b\u9762\u7684\u8bf4\u6cd5\u4e2d\u6b63\u786e\u7684\u662f ( )
A\uff0e\u5355\u9879\u5f0f\u4e0e\u5355\u9879\u5f0f\u7684\u548c\u662f\u5355\u9879\u5f0f\uff0eB\uff0e\u5355\u9879\u5f0f\u4e0e\u5355\u9879\u5f0f\u7684\u548c\u662f\u591a\u9879\u5f0f\uff0e
C\uff0e\u591a\u9879\u5f0f\u4e0e\u591a\u9879\u5f0f\u7684\u548c\u662f\u591a\u9879\u5f0f\uff0eD\uff0e\u6574\u5f0f\u4e0e\u6574\u5f0f\u7684\u548c\u662f\u6574\u5f0f\uff0e
3\uff0e\u4e0b\u9762\u8bf4\u6cd5\u4e2d\u4e0d\u6b63\u786e\u7684\u662f ( )
A. \u6709\u6700\u5c0f\u7684\u81ea\u7136\u6570\uff0e B\uff0e\u6ca1\u6709\u6700\u5c0f\u7684\u6b63\u6709\u7406\u6570\uff0e
C\uff0e\u6ca1\u6709\u6700\u5927\u7684\u8d1f\u6574\u6570\uff0e D\uff0e\u6ca1\u6709\u6700\u5927\u7684\u975e\u8d1f\u6570\uff0e
4\uff0e\u5982\u679ca\uff0cb\u4ee3\u8868\u6709\u7406\u6570\uff0c\u5e76\u4e14a\uff0bb\u7684\u503c\u5927\u4e8ea\uff0db\u7684\u503c\uff0c\u90a3\u4e48 ( )
A\uff0ea\uff0cb\u540c\u53f7\uff0e B\uff0ea\uff0cb\u5f02\u53f7\uff0eC\uff0ea\uff1e0\uff0e D\uff0eb\uff1e0\uff0e
5\uff0e\u5927\u4e8e\uff0d\u03c0\u5e76\u4e14\u4e0d\u662f\u81ea\u7136\u6570\u7684\u6574\u6570\u6709 ( )
A\uff0e2\u4e2a\uff0e B\uff0e3\u4e2a\uff0eC\uff0e4\u4e2a\uff0e D\uff0e\u65e0\u6570\u4e2a\uff0e
6\uff0e\u6709\u56db\u79cd\u8bf4\u6cd5\uff1a
\u7532\uff0e\u6b63\u6570\u7684\u5e73\u65b9\u4e0d\u4e00\u5b9a\u5927\u4e8e\u5b83\u672c\u8eab\uff1b\u4e59\uff0e\u6b63\u6570\u7684\u7acb\u65b9\u4e0d\u4e00\u5b9a\u5927\u4e8e\u5b83\u672c\u8eab\uff1b
\u4e19\uff0e\u8d1f\u6570\u7684\u5e73\u65b9\u4e0d\u4e00\u5b9a\u5927\u4e8e\u5b83\u672c\u8eab\uff1b\u4e01\uff0e\u8d1f\u6570\u7684\u7acb\u65b9\u4e0d\u4e00\u5b9a\u5927\u4e8e\u5b83\u672c\u8eab\uff0e
\u8fd9\u56db\u79cd\u8bf4\u6cd5\u4e2d\uff0c\u4e0d\u6b63\u786e\u7684\u8bf4\u6cd5\u7684\u4e2a\u6570\u662f ( )
A\uff0e0\u4e2a\uff0e B\uff0e1\u4e2a\uff0eC\uff0e2\u4e2a\uff0e D\uff0e3\u4e2a\uff0e
7\uff0ea\u4ee3\u8868\u6709\u7406\u6570\uff0c\u90a3\u4e48\uff0ca\u548c\uff0da\u7684\u5927\u5c0f\u5173\u7cfb\u662f ( )
A\uff0ea\u5927\u4e8e\uff0da\uff0eB\uff0ea\u5c0f\u4e8e\uff0da\uff0eC\uff0ea\u5927\u4e8e\uff0da\u6216a\u5c0f\u4e8e\uff0da\uff0eD\uff0ea\u4e0d\u4e00\u5b9a\u5927\u4e8e\uff0da\uff0e
8\uff0e\u5728\u89e3\u65b9\u7a0b\u7684\u8fc7\u7a0b\u4e2d\uff0c\u4e3a\u4e86\u4f7f\u5f97\u5230\u7684\u65b9\u7a0b\u548c\u539f\u65b9\u7a0b\u540c\u89e3\uff0c\u53ef\u4ee5\u5728\u539f\u65b9\u7a0b\u7684\u4e24\u8fb9( )
A\uff0e\u4e58\u4ee5\u540c\u4e00\u4e2a\u6570\uff0eB\uff0e\u4e58\u4ee5\u540c\u4e00\u4e2a\u6574\u5f0f\uff0eC\uff0e\u52a0\u4e0a\u540c\u4e00\u4e2a\u4ee3\u6570\u5f0f\uff0eD\uff0e\u90fd\u52a0\u4e0a1\uff0e
9\uff0e\u676f\u5b50\u4e2d\u6709\u5927\u534a\u676f\u6c34\uff0c\u7b2c\u4e8c\u5929\u8f83\u7b2c\u4e00\u5929\u51cf\u5c11\u4e8610%\uff0c\u7b2c\u4e09\u5929\u53c8\u8f83\u7b2c\u4e8c\u5929\u589e\u52a0\u4e8610%\uff0c\u90a3\u4e48\uff0c\u7b2c\u4e09\u5929\u676f\u4e2d\u7684\u6c34\u91cf\u4e0e\u7b2c\u4e00\u5929\u676f\u4e2d\u7684\u6c34\u91cf\u76f8\u6bd4\u7684\u7ed3\u679c\u662f( )
A\uff0e\u4e00\u6837\u591a\uff0e B\uff0e\u591a\u4e86\uff0eC\uff0e\u5c11\u4e86\uff0e D\uff0e\u591a\u5c11\u90fd\u53ef\u80fd\uff0e
10\uff0e\u8f6e\u8239\u5f80\u8fd4\u4e8e\u4e00\u6761\u6cb3\u7684\u4e24\u7801\u5934\u4e4b\u95f4\uff0c\u5982\u679c\u8239\u672c\u8eab\u5728\u9759\u6c34\u4e2d\u7684\u901f\u5ea6\u662f\u56fa\u5b9a\u7684\uff0c\u90a3\u4e48\uff0c\u5f53\u8fd9\u6761\u6cb3\u7684\u6c34\u6d41\u901f\u5ea6\u589e\u5927\u65f6\uff0c\u8239\u5f80\u8fd4\u4e00\u6b21\u6240\u7528\u7684\u65f6\u95f4\u5c06( )
A\uff0e\u589e\u591a\uff0e B\uff0e\u51cf\u5c11\uff0eC\uff0e\u4e0d\u53d8\uff0e D\uff0e\u589e\u591a\u3001\u51cf\u5c11\u90fd\u6709\u53ef\u80fd\uff0e
\u4e8c\u3001\u586b\u7a7a\u9898\uff08\u6bcf\u98981\u5206\uff0c\u517110\u5206\uff09
1. ______\uff0e
2\uff0e198919902\uff0d198919892=______\uff0e
3. =________.
4. \u5173\u4e8ex\u7684\u65b9\u7a0b \u7684\u89e3\u662f_________.
5\uff0e1\uff0d2\uff0b3\uff0d4+5\uff0d6+7\uff0d8+\u2026+4999\uff0d5000=______\uff0e
6.\u5f53x=- \u65f6,\u4ee3\u6570\u5f0f(3x3\uff0d5x2+6x\uff0d1)\uff0d(x3\uff0d2x2+x\uff0d2)+(\uff0d2x3+3x2+1)\u7684\u503c\u662f____\uff0e
7\uff0e\u5f53a=\uff0d0.2\uff0cb=0.04\u65f6\uff0c\u4ee3\u6570\u5f0f \u7684\u503c\u662f______.
8\uff0e\u542b\u76d030%\u7684\u76d0\u6c34\u670960\u5343\u514b\uff0c\u653e\u5728\u79e4\u4e0a\u84b8\u53d1\uff0c\u5f53\u76d0\u6c34\u53d8\u4e3a\u542b\u76d040%\u65f6\uff0c\u79e4\u5f97\u76d0\u6c34\u7684\u91cd\u662f______\u514b\uff0e
9.\u5236\u9020\u4e00\u6279\u96f6\u4ef6,\u6309\u8ba1\u521218\u5929\u53ef\u4ee5\u5b8c\u6210\u5b83\u7684 .\u5982\u679c\u5de5\u4f5c4\u5929\u540e,\u5de5\u4f5c\u6548\u7387\u63d0\u9ad8\u4e86 ,\u90a3\u4e48\u5b8c\u6210\u8fd9\u6279\u96f6\u4ef6\u7684\u4e00\u534a\uff0c\u4e00\u5171\u9700\u8981______\u5929\uff0e
10\uff0e\u73b0\u57284\u70b95\u5206\uff0c\u518d\u8fc7______\u5206\u949f\uff0c\u5206\u9488\u548c\u65f6\u9488\u7b2c\u4e00\u6b21\u91cd\u5408\uff0e
\u7b54\u6848\u4e0e\u63d0\u793a
\u4e00\u3001\u9009\u62e9\u9898
1\uff0eC 2\uff0eD 3\uff0eC 4\uff0eD 5\uff0eC 6\uff0eB 7\uff0eD 8\uff0eD 9\uff0eC 10\uff0eA
\u63d0\u793a\uff1a
1\uff0e\u4ee4a=2\uff0cb=\uff0d2\uff0c\u6ee1\u8db32+(\uff0d2)=0\uff0c\u7531\u6b64
2\uff0ex2\uff0c2x2\uff0cx3\u90fd\u662f\u5355\u9879\u5f0f\uff0e\u4e24\u4e2a\u5355\u9879\u5f0fx3\uff0cx2\u4e4b\u548c\u4e3ax3+x2\u662f\u591a\u9879\u5f0f\uff0c\u6392\u9664A\uff0e\u4e24\u4e2a\u5355\u9879\u5f0fx2\uff0c2x2\u4e4b\u548c\u4e3a3x2\u662f\u5355\u9879\u5f0f\uff0c\u6392\u9664B\uff0e\u4e24\u4e2a\u591a\u9879\u5f0fx3+x2\u4e0ex3\uff0dx2\u4e4b\u548c\u4e3a2x3\u662f\u4e2a\u5355\u9879\u5f0f\uff0c\u6392\u9664C\uff0c\u56e0\u6b64\u9009D\uff0e
3\uff0e1\u662f\u6700\u5c0f\u7684\u81ea\u7136\u6570\uff0cA\u6b63\u786e\uff0e\u53ef\u4ee5\u627e\u5230\u6b63
\u6240\u4ee5C\u201c\u6ca1\u6709\u6700\u5927\u7684\u8d1f\u6574\u6570\u201d\u7684\u8bf4\u6cd5\u4e0d\u6b63\u786e\uff0e\u5199\u51fa\u6269\u5927\u81ea\u7136\u6570\u5217\uff0c0\uff0c1\uff0c2\uff0c3\uff0c\u2026\uff0cn\uff0c\u2026\uff0c\u6613\u77e5\u65e0\u6700\u5927\u975e\u8d1f\u6570\uff0cD\u6b63\u786e\uff0e\u6240\u4ee5\u4e0d\u6b63\u786e\u7684\u8bf4\u6cd5\u5e94\u9009C\uff0e
5\uff0e\u5728\u6570\u8f74\u4e0a\u5bb9\u6613\u770b\u51fa\uff1a\u5728\uff0d\u03c0\u53f3\u8fb90\u7684\u5de6\u8fb9\uff08\u5305\u62ec0\u5728\u5185\uff09\u7684\u6574\u6570\u53ea\u6709\uff0d3\uff0c\uff0d2\uff0c\uff0d1\uff0c0\u51714\u4e2a\uff0e\u9009C\uff0e
6\uff0e\u753112=1\uff0c13=1\u53ef\u77e5\u7532\u3001\u4e59\u4e24\u79cd\u8bf4\u6cd5\u662f\u6b63\u786e\u7684\uff0e\u7531(\uff0d1)3=\uff0d1\uff0c\u53ef\u77e5\u4e01\u4e5f\u662f\u6b63\u786e\u7684\u8bf4\u6cd5\uff0e\u800c\u8d1f\u6570\u7684\u5e73\u65b9\u5747\u4e3a\u6b63\u6570\uff0c\u5373\u8d1f\u6570\u7684\u5e73\u65b9\u4e00\u5b9a\u5927\u4e8e\u5b83\u672c\u8eab\uff0c\u6240\u4ee5\u201c\u8d1f\u6570\u5e73\u65b9\u4e0d\u4e00\u5b9a\u5927\u4e8e\u5b83\u672c\u8eab\u201d\u7684\u8bf4\u6cd5\u4e0d\u6b63\u786e\uff0e\u5373\u4e19\u4e0d\u6b63\u786e\uff0e\u5728\u7532\u3001\u4e59\u3001\u4e19\u3001\u4e01\u56db\u4e2a\u8bf4\u6cd5\u4e2d\uff0c\u53ea\u6709\u4e191\u4e2a\u8bf4\u6cd5\u4e0d\u6b63\u786e\uff0e\u6240\u4ee5\u9009B\uff0e
7\uff0e\u4ee4a=0\uff0c\u9a6c\u4e0a\u53ef\u4ee5\u6392\u9664A\u3001B\u3001C\uff0c\u5e94\u9009D\uff0e
8\uff0e\u5bf9\u65b9\u7a0b\u540c\u89e3\u53d8\u5f62\uff0c\u8981\u6c42\u65b9\u7a0b\u4e24\u8fb9\u540c\u4e58\u4e0d\u7b49\u4e8e0\u7684\u6570\uff0e\u6240\u4ee5\u6392\u9664A\uff0e
\u6211\u4eec\u8003\u5bdf\u65b9\u7a0bx\uff0d2=0\uff0c\u6613\u77e5\u5176\u6839\u4e3ax=2\uff0e\u82e5\u8be5\u65b9\u7a0b\u4e24\u8fb9\u540c\u4e58\u4ee5\u4e00\u4e2a\u6574\u5f0fx\uff0d1\uff0c\u5f97(x\uff0d1)(x\uff0d2)=0\uff0c\u5176\u6839\u4e3ax=1\u53cax=2\uff0c\u4e0d\u4e0e\u539f\u65b9\u7a0b\u540c\u89e3\uff0c\u6392\u9664B\uff0e\u82e5\u5728\u65b9\u7a0bx\uff0d2=0\u4e24\u8fb9\u52a0\u4e0a\u540c\u4e00\u4e2a\u4ee3\u6570\u5f0f \u53bb\u4e86\u539f\u65b9\u7a0bx=2\u7684\u6839\uff0e\u6240\u4ee5\u5e94\u6392\u9664C\uff0e\u4e8b\u5b9e\u4e0a\u65b9\u7a0b\u4e24\u8fb9\u540c\u65f6\u52a0\u4e0a\u4e00\u4e2a\u5e38\u6570\uff0c\u65b0\u65b9\u7a0b\u4e0e\u539f\u65b9\u7a0b\u540c\u89e3\uff0c\u5bf9D\uff0c\u8fd9\u91cc\u6240\u52a0\u5e38\u6570\u4e3a1\uff0c\u56e0\u6b64\u9009D\uff0e
9\uff0e\u8bbe\u676f\u4e2d\u539f\u6709\u6c34\u91cf\u4e3aa\uff0c\u4f9d\u9898\u610f\u53ef\u5f97\uff0c
\u7b2c\u4e8c\u5929\u676f\u4e2d\u6c34\u91cf\u4e3aa\u00d7(1\uff0d10%)=0.9a\uff1b
\u7b2c\u4e09\u5929\u676f\u4e2d\u6c34\u91cf\u4e3a(0.9a)\u00d7(1+10%)=0.9\u00d71.1\u00d7a\uff1b
\u7b2c\u4e09\u5929\u676f\u4e2d\u6c34\u91cf\u4e0e\u7b2c\u4e00\u5929\u676f\u4e2d\u6c34\u91cf\u4e4b\u6bd4\u4e3a
\u6240\u4ee5\u7b2c\u4e09\u5929\u676f\u4e2d\u6c34\u91cf\u6bd4\u7b2c\u4e00\u5929\u676f\u4e2d\u6c34\u91cf\u5c11\u4e86\uff0c\u9009C\uff0e
10\uff0e\u8bbe\u4e24\u7801\u5934\u4e4b\u95f4\u8ddd\u79bb\u4e3as\uff0c\u8239\u5728\u9759\u6c34\u4e2d\u901f\u5ea6\u4e3aa\uff0c\u6c34\u901f\u4e3av0\uff0c\u5219\u5f80\u8fd4\u4e00\u6b21\u6240\u7528\u65f6\u95f4\u4e3a
\u8bbe\u6cb3\u6c34\u901f\u5ea6\u589e\u5927\u540e\u4e3av\uff0c(v\uff1ev0)\u5219\u5f80\u8fd4\u4e00\u6b21\u6240\u7528\u65f6\u95f4\u4e3a
\u7531\u4e8ev\uff0dv0\uff1e0\uff0ca+v0\uff1ea\uff0dv0\uff0ca+v\uff1ea\uff0dv
\u6240\u4ee5(a+v0)(a+v)\uff1e(a\uff0dv0)(a\uff0dv)
\u2234t0\uff0dt\uff1c0\uff0c\u5373t0\uff1ct\uff0e\u56e0\u6b64\u6cb3\u6c34\u901f\u589e\u5927\u6240\u7528\u65f6\u95f4\u5c06\u589e\u591a\uff0c\u9009A\uff0e
\u4e8c\u3001\u586b\u7a7a\u9898
\u63d0\u793a\uff1a
2\uff0e198919902\uff0d198919892
=(19891990+19891989)\u00d7(19891990\uff0d19891989)
=(19891990+19891989)\u00d71=39783979\uff0e
3\uff0e\u7531\u4e8e(2+1)(22+1)(24+1)(28+1)(216+1)
=(2\uff0d1)(2+1)(22+1)(24+1)(28+1)(216+1)
=(22\uff0d1)(22+1)(24+1)(28+1)(216+1)
=(24\uff0d1)(24+1)(28+1)(216+1)
=(28\uff0d1)(28+1)(216+1)
=(216\uff0d1)(216+1)=232\uff0d1\uff0e
2(1+x)\uff0d(x\uff0d2)=8,2+2x\uff0dx+2=8\u89e3\u5f97\uff1bx=4
5\uff0e1\uff0d2+3\uff0d4+5\uff0d6+7\uff0d8+\u2026+4999\uff0d5000
=(1\uff0d2)+(3\uff0d4)+(5\uff0d6)+(7\uff0d8)+\u2026+(4999\uff0d5000)
=\uff0d2500\uff0e
6\uff0e(3x3\uff0d5x2+6x\uff0d1)\uff0d(x3\uff0d2x2+x\uff0d2)+(\uff0d2x3+3x2+1)=5x+2
7\uff0e\u6ce8\u610f\u5230\uff1a
\u5f53a=\uff0d0.2\uff0cb=0.04\u65f6\uff0ca2\uff0db=(\uff0d0.2)2\uff0d0.04=0\uff0cb+a+0.16=0.04\uff0d0.2+0.16=0\uff0e
8\uff0e\u98df\u76d030%\u7684\u76d0\u6c3460\u5343\u514b\u4e2d\u542b\u76d060\u00d730%\uff08\u5343\u514b\uff09\u8bbe\u84b8\u53d1\u53d8\u6210\u542b\u76d0\u4e3a40%\u7684\u6c34\u91cdx\u514b\uff0c\u53730.001x\u5343\u514b\uff0c\u6b64\u65f6\uff0c60\u00d730%=(0.001x)\u00d740%
\u89e3\u5f97\uff1ax=45000\uff08\u514b\uff09\uff0e
\u8fc7\u6865\u95ee\u9898\uff081\uff09
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2. \u4e00\u5217\u706b\u8f66\u957f200\u7c73\uff0c\u5168\u8f66\u901a\u8fc7\u957f700\u7c73\u7684\u6865\u9700\u898130\u79d2\u949f\uff0c\u8fd9\u5217\u706b\u8f66\u6bcf\u79d2\u884c\u591a\u5c11\u7c73\uff1f
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1. \u79e6\u594b\u548c\u5988\u5988\u7684\u5e74\u9f84\u52a0\u5728\u4e00\u8d77\u662f40\u5c81\uff0c\u5988\u5988\u7684\u5e74\u9f84\u662f\u79e6\u594b\u5e74\u9f84\u76844\u500d\uff0c\u95ee\u79e6\u594b\u548c\u5988\u5988\u5404\u662f\u591a\u5c11\u5c81\uff1f
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1. \u7528\u767d\u94c1\u76ae\u505a\u7f50\u5934\u76d2\uff0c\u6bcf\u5f20\u94c1\u76ae\u53ef\u5236\u76d2\u8eab16\u4e2a\uff0c\u6216\u5236\u76d2\u5e9543\u4e2a\uff0c\u4e00\u4e2a\u76d2\u8eab\u548c\u4e24\u4e2a\u76d2\u5e95\u914d\u6210\u4e00\u4e2a\u7f50\u5934\u76d2\uff0c\u73b0\u6709150\u5f20\u94c1\u76ae\uff0c\u7528\u591a\u5c11\u5f20\u5236\u76d2\u8eab\uff0c\u591a\u5c11\u5f20\u5236\u76d2\u5e95\uff0c\u624d\u80fd\u4f7f\u76d2\u8eab\u4e0e\u76d2\u5e95\u6b63\u597d\u914d\u5957\uff1f
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\u56e0\u4e3a\u5076\u6570\u662f2\u7684\u500d\u6570\uff0c\u6240\u4ee5\u901a\u5e38\u7528 \u8fd9\u4e2a\u5f0f\u5b50\u6765\u8868\u793a\u5076\u6570\uff08\u8fd9\u91cc \u662f\u6574\u6570\uff09\u3002\u56e0\u4e3a\u4efb\u4f55\u5947\u6570\u9664\u4ee52\u5176\u4f59\u6570\u90fd\u662f1\uff0c\u6240\u4ee5\u901a\u5e38\u7528\u5f0f\u5b50 \u6765\u8868\u793a\u5947\u6570\uff08\u8fd9\u91cc \u662f\u6574\u6570\uff09\u3002
\u5947\u6570\u548c\u5076\u6570\u6709\u8bb8\u591a\u6027\u8d28\uff0c\u5e38\u7528\u7684\u6709\uff1a
\u6027\u8d281 \u4e24\u4e2a\u5076\u6570\u7684\u548c\u6216\u8005\u5dee\u4ecd\u7136\u662f\u5076\u6570\u3002
\u4f8b\u5982\uff1a8+4=12\uff0c8-4=4\u7b49\u3002
\u4e24\u4e2a\u5947\u6570\u7684\u548c\u6216\u5dee\u4e5f\u662f\u5076\u6570\u3002
\u4f8b\u5982\uff1a9+3=12\uff0c9-3=6\u7b49\u3002
\u5947\u6570\u4e0e\u5076\u6570\u7684\u548c\u6216\u5dee\u662f\u5947\u6570\u3002
\u4f8b\u5982\uff1a9+4=13\uff0c9-4=5\u7b49\u3002
\u5355\u6570\u4e2a\u5947\u6570\u7684\u548c\u662f\u5947\uff0c\u53cc\u6570\u4e2a\u5947\u6570\u7684\u548c\u662f\u5076\u6570\uff0c\u51e0\u4e2a\u5076\u6570\u7684\u548c\u4ecd\u662f\u5076\u6570\u3002
\u6027\u8d282 \u5947\u6570\u4e0e\u5947\u6570\u7684\u79ef\u662f\u5947\u6570\u3002
\u5076\u6570\u4e0e\u6574\u6570\u7684\u79ef\u662f\u5076\u6570\u3002
\u6027\u8d283 \u4efb\u4f55\u4e00\u4e2a\u5947\u6570\u4e00\u5b9a\u4e0d\u7b49\u4e8e\u4efb\u4f55\u4e00\u4e2a\u5076\u6570\u3002
1. \u67095\u5f20\u6251\u514b\u724c\uff0c\u753b\u9762\u5411\u4e0a\u3002\u5c0f\u660e\u6bcf\u6b21\u7ffb\u8f6c\u5176\u4e2d\u76844\u5f20\uff0c\u90a3\u4e48\uff0c\u4ed6\u80fd\u5728\u7ffb\u52a8\u82e5\u5e72\u6b21\u540e\uff0c\u4f7f5\u5f20\u724c\u7684\u753b\u9762\u90fd\u5411\u4e0b\u5417\uff1f
\u540c\u5b66\u4eec\u53ef\u4ee5\u8bd5\u9a8c\u4e00\u4e0b\uff0c\u53ea\u6709\u5c06\u4e00\u5f20\u724c\u7ffb\u52a8\u5947\u6570\u6b21\uff0c\u624d\u80fd\u4f7f\u5b83\u7684\u753b\u9762\u7531\u5411\u4e0a\u53d8\u4e3a\u5411\u4e0b\u3002\u8981\u60f3\u4f7f5\u5f20\u724c\u7684\u753b\u9762\u90fd\u5411\u4e0b\uff0c\u90a3\u4e48\u6bcf\u5f20\u724c\u90fd\u8981\u7ffb\u52a8\u5947\u6570\u6b21\u3002
5\u4e2a\u5947\u6570\u7684\u548c\u662f\u5947\u6570\uff0c\u6240\u4ee5\u7ffb\u52a8\u7684\u603b\u5f20\u6570\u4e3a\u5947\u6570\u65f6\u624d\u80fd\u4f7f5\u5f20\u724c\u7684\u724c\u9762\u90fd\u5411\u4e0b\u3002\u800c\u5c0f\u660e\u6bcf\u6b21\u7ffb\u52a84\u5f20\uff0c\u4e0d\u7ba1\u7ffb\u591a\u5c11\u6b21\uff0c\u7ffb\u52a8\u7684\u603b\u5f20\u6570\u90fd\u662f\u5076\u6570\u3002
\u6240\u4ee5\u65e0\u8bba\u4ed6\u7ffb\u52a8\u591a\u5c11\u6b21\uff0c\u90fd\u4e0d\u80fd\u4f7f5\u5f20\u724c\u753b\u9762\u90fd\u5411\u4e0b\u3002
2. \u7532\u76d2\u4e2d\u653e\u6709180\u4e2a\u767d\u8272\u56f4\u68cb\u5b50\u548c181\u4e2a\u9ed1\u8272\u56f4\u68cb\u5b50\uff0c\u4e59\u76d2\u4e2d\u653e\u6709181\u4e2a\u767d\u8272\u56f4\u68cb\u5b50\uff0c\u674e\u5e73\u6bcf\u6b21\u4efb\u610f\u4ece\u7532\u76d2\u4e2d\u6478\u51fa\u4e24\u4e2a\u68cb\u5b50\uff0c\u5982\u679c\u4e24\u4e2a\u68cb\u5b50\u540c\u8272\uff0c\u4ed6\u5c31\u4ece\u4e59\u76d2\u4e2d\u62ff\u51fa\u4e00\u4e2a\u767d\u5b50\u653e\u5165\u7532\u76d2\uff1b\u5982\u679c\u4e24\u4e2a\u68cb\u5b50\u4e0d\u540c\u8272\uff0c\u4ed6\u5c31\u628a\u9ed1\u5b50\u653e\u56de\u7532\u76d2\u3002\u90a3\u4e48\u4ed6\u62ff\u591a\u5c11\u540e\uff0c\u7532\u76d2\u4e2d\u53ea\u5269\u4e0b\u4e00\u4e2a\u68cb\u5b50\uff0c\u8fd9\u4e2a\u68cb\u5b50\u662f\u4ec0\u4e48\u989c\u8272\u7684\uff1f
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\u5982\u679c\u4ed6\u62ff\u51fa\u7684\u662f\u4e24\u4e2a\u9ed1\u5b50\uff0c\u90a3\u4e48\u7532\u76d2\u4e2d\u7684\u9ed1\u5b50\u6570\u5c31\u51cf\u5c11\u4e24\u4e2a\u3002\u5426\u5219\u7532\u76d2\u5b50\u4e2d\u7684\u9ed1\u5b50\u6570\u4e0d\u53d8\u3002\u4e5f\u5c31\u662f\u8bf4\uff0c\u674e\u5e73\u6bcf\u6b21\u4ece\u7532\u76d2\u5b50\u62ff\u51fa\u7684\u9ed1\u5b50\u6570\u90fd\u662f\u5076\u6570\u3002\u7531\u4e8e181\u662f\u5947\u6570\uff0c\u5947\u6570\u51cf\u5076\u6570\u7b49\u4e8e\u5947\u6570\u3002\u6240\u4ee5\uff0c\u7532\u76d2\u4e2d\u5269\u4e0b\u7684\u9ed1\u5b50\u6570\u5e94\u662f\u5947\u6570\uff0c\u800c\u4e0d\u5927\u4e8e1\u7684\u5947\u6570\u53ea\u67091\uff0c\u6240\u4ee5\u7532\u76d2\u91cc\u5269\u4e0b\u7684\u4e00\u4e2a\u68cb\u5b50\u5e94\u8be5\u662f\u9ed1\u5b50\u3002
\u5965\u8d5b\u4e13\u9898 -- \u79f0\u7403\u95ee\u9898
\u4f8b1 \u67094\u5806\u5916\u8868\u4e0a\u4e00\u6837\u7684\u7403\uff0c\u6bcf\u58064\u4e2a\u3002\u5df2\u77e5\u5176\u4e2d\u4e09\u5806\u662f\u6b63\u54c1\u3001\u4e00\u5806\u662f\u6b21\u54c1\uff0c\u6b63\u54c1\u7403\u6bcf\u4e2a\u91cd10\u514b\uff0c\u6b21\u54c1\u7403\u6bcf\u4e2a\u91cd11\u514b\uff0c\u8bf7\u4f60\u7528\u5929\u5e73\u53ea\u79f0\u4e00\u6b21\uff0c\u628a\u662f\u6b21\u54c1\u7684\u90a3\u5806\u627e\u51fa\u6765\u3002
\u89e3 \uff1a\u4f9d\u6b21\u4ece\u7b2c\u4e00\u3001\u4e8c\u3001\u4e09\u3001\u56db\u5806\u7403\u4e2d\uff0c\u5404\u53d61\u30012\u30013\u30014\u4e2a\u7403\uff0c\u8fd910\u4e2a\u7403\u4e00\u8d77\u653e\u5230\u5929\u5e73\u4e0a\u53bb\u79f0\uff0c\u603b\u91cd\u91cf\u6bd4100\u514b\u591a\u51e0\u514b\uff0c\u7b2c\u51e0\u5806\u5c31\u662f\u6b21\u54c1\u7403\u3002
2 \u670927\u4e2a\u5916\u8868\u4e0a\u4e00\u6837\u7684\u7403\uff0c\u5176\u4e2d\u53ea\u6709\u4e00\u4e2a\u662f\u6b21\u54c1\uff0c\u91cd\u91cf\u6bd4\u6b63\u54c1\u8f7b\uff0c\u8bf7\u4f60\u7528\u5929\u5e73\u53ea\u79f0\u4e09\u6b21\uff08\u4e0d\u7528\u781d\u7801\uff09\uff0c\u628a\u6b21\u54c1\u7403\u627e\u51fa\u6765\u3002
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\uff081\uff09\u82e5A=B\uff0c\u5219A\u3001B\u4e2d\u90fd\u662f\u6b63\u54c1\uff0c\u518d\u79f0B\u3001C\u3002\u5982B=C\uff0c\u663e\u7136D\u4e2d\u7684\u90a3\u4e2a\u7403\u662f\u6b21\u54c1\uff1b\u5982B\uff1eC\uff0c\u5219\u6b21\u54c1\u5728C\u4e2d\u4e14\u6b21\u54c1\u6bd4\u6b63\u54c1\u8f7b\uff0c\u518d\u5728C\u4e2d\u53d6\u51fa2\u4e2a\u7403\u6765\u79f0\uff0c\u4fbf\u53ef\u5f97\u51fa\u7ed3\u8bba\u3002\u5982B\uff1cC\uff0c\u4eff\u7167B\uff1eC\u7684\u60c5\u51b5\u4e5f\u53ef\u5f97\u51fa\u7ed3\u8bba\u3002
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\u5965\u8d5b\u4e13\u9898 -- \u62bd\u5c49\u539f\u7406
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\u7b54\uff1a\u9e21\u670928\u53ea\uff0c\u514d\u670918\u53ea\u3002
\u4f8b2 \u9e21\u4e0e\u5154\u5171\u6709100\u53ea\uff0c\u9e21\u7684\u811a\u6bd4\u5154\u7684\u811a\u591a80\u53ea\uff0c\u95ee\u9e21\u4e0e\u5154\u5404\u591a\u5c11\u53ea\uff1f
[\u5206\u6790]\uff1a \u8fd9\u4e2a\u4f8b\u9898\u4e0e\u524d\u9762\u4f8b\u9898\u662f\u6709\u533a\u522b\u7684\uff0c\u6ca1\u6709\u7ed9\u51fa\u5b83\u4eec\u811a\u6570\u7684\u603b\u548c\uff0c\u800c\u662f\u7ed9\u51fa\u4e86\u5b83\u4eec\u811a\u6570\u7684\u5dee.\u8fd9\u53c8\u5982\u4f55\u89e3\u7b54\u5462\uff1f
\u5047\u8bbe100\u53ea\u5168\u662f\u9e21\uff0c\u90a3\u4e48\u811a\u7684\u603b\u6570\u662f2\u00d7100=200\uff08\u53ea\uff09\u8fd9\u65f6\u5154\u7684\u811a\u6570\u4e3a0\uff0c\u9e21\u811a\u6bd4\u5154\u811a\u591a200\u53ea\uff0c\u800c\u5b9e\u9645\u4e0a\u9e21\u811a\u6bd4\u5154\u811a\u591a80\u53ea.\u56e0\u6b64\uff0c\u9e21\u811a\u4e0e\u5154\u811a\u7684\u5dee\u6570\u6bd4\u5df2\u77e5\u591a\u4e86\uff08200-80\uff09=120\uff08\u53ea\uff09\uff0c\u8fd9\u662f\u56e0\u4e3a\u628a\u5176\u4e2d\u7684\u5154\u6362\u6210\u4e86\u9e21.\u6bcf\u628a\u4e00\u53ea\u5154\u6362\u6210\u9e21\uff0c\u9e21\u7684\u811a\u6570\u5c06\u589e\u52a02\u53ea\uff0c\u5154\u7684\u811a\u6570\u51cf\u5c114\u53ea.\u90a3\u4e48\uff0c\u9e21\u811a\u4e0e\u5154\u811a\u7684\u5dee\u6570\u589e\u52a0\uff082+4\uff09=6\uff08\u53ea\uff09\uff0c\u6240\u4ee5\u6362\u6210\u9e21\u7684\u5154\u5b50\u6709120\u00f76=20\uff08\u53ea\uff09.\u6709\u9e21\uff08100-20\uff09=80\uff08\u53ea\uff09\u3002
\u89e3\uff1a\uff082\u00d7100-80\uff09\u00f7\uff082+4\uff09=20\uff08\u53ea\uff09\u3002
100-20=80\uff08\u53ea\uff09\u3002
\u7b54\uff1a\u9e21\u4e0e\u5154\u5206\u522b\u670980\u53ea\u548c20\u53ea\u3002
\u4f8b3 \u7ea2\u82f1\u5c0f\u5b66\u4e09\u5e74\u7ea7\u67093\u4e2a\u73ed\u5171135\u4eba\uff0c\u4e8c\u73ed\u6bd4\u4e00\u73ed\u591a5\u4eba\uff0c\u4e09\u73ed\u6bd4\u4e8c\u73ed\u5c117\u4eba\uff0c\u4e09\u4e2a\u73ed\u5404\u6709\u591a\u5c11\u4eba\uff1f
[\u5206\u67901] \u6211\u4eec\u8bbe\u60f3\uff0c\u5982\u679c\u6761\u4ef6\u4e2d\u4e09\u4e2a\u73ed\u4eba\u6570\u540c\u6837\u591a\uff0c\u90a3\u4e48\uff0c\u8981\u6c42\u6bcf\u73ed\u6709\u591a\u5c11\u4eba\u5c31\u5f88\u5bb9\u6613\u4e86.\u7531\u6b64\u5f97\u5230\u542f\u793a\uff0c\u662f\u5426\u53ef\u4ee5\u901a\u8fc7\u5047\u8bbe\u4e09\u4e2a\u73ed\u4eba\u6570\u540c\u6837\u591a\u6765\u5206\u6790\u6c42\u89e3\u3002
\u7ed3\u5408\u4e0b\u56fe\u53ef\u4ee5\u60f3\uff0c\u5047\u8bbe\u4e8c\u73ed\u3001\u4e09\u73ed\u4eba\u6570\u548c\u4e00\u73ed\u4eba\u6570\u76f8\u540c\uff0c\u4ee5\u4e00\u73ed\u4e3a\u6807\u51c6\uff0c\u5219\u4e8c\u73ed\u4eba\u6570\u8981\u6bd4\u5b9e\u9645\u4eba\u6570\u5c115\u4eba.\u4e09\u73ed\u4eba\u6570\u8981\u6bd4\u5b9e\u9645\u4eba\u6570\u591a7-5=2\uff08\u4eba\uff09.\u90a3\u4e48\uff0c\u8bf7\u4f60\u7b97\u4e00\u7b97\uff0c\u5047\u8bbe\u4e8c\u73ed\u3001\u4e09\u73ed\u4eba\u6570\u548c\u4e00\u73ed\u4eba\u6570\u540c\u6837\u591a\uff0c\u4e09\u4e2a\u73ed\u603b\u4eba\u6570\u5e94\u8be5\u662f\u591a\u5c11\uff1f
\u89e3\u6cd51\uff1a
\u4e00\u73ed\uff1a[135-5+\uff087-5\uff09]\u00f73=132\u00f73
=44\uff08\u4eba\uff09
\u4e8c\u73ed\uff1a44+5=49\uff08\u4eba\uff09
\u4e09\u73ed\uff1a49-7=42\uff08\u4eba\uff09
\u7b54\uff1a\u4e09\u5e74\u7ea7\u4e00\u73ed\u3001 \u4e8c\u73ed\u3001\u4e09\u73ed\u5206\u522b\u670944\u4eba\u3001 49\u4eba\u548c 42\u4eba\u3002
[\u5206\u67902] \u5047\u8bbe\u4e00\u3001\u4e09\u73ed\u4eba\u6570\u548c\u4e8c\u73ed\u4eba\u6570\u540c\u6837\u591a\uff0c\u90a3\u4e48\uff0c\u4e00\u73ed\u4eba\u6570\u6bd4\u5b9e\u9645\u8981\u591a5\u4eba\uff0c\u800c\u4e09\u73ed\u8981\u6bd4\u5b9e\u9645\u4eba\u6570\u591a7\u4eba.\u8fd9\u65f6\u7684\u603b\u4eba\u6570\u53c8\u8be5\u662f\u591a\u5c11\uff1f
\u89e3\u6cd52\uff1a\uff08135+ 5+ 7\uff09\u00f73 = 147\u00f73 = 49\uff08\u4eba\uff09
49-5=44\uff08\u4eba\uff09\uff0c49-7=42\uff08\u4eba\uff09
\u7b54\uff1a\u4e09\u5e74\u7ea7\u4e00\u73ed\u3001\u4e8c\u73ed\u3001\u4e09\u73ed\u5206\u522b\u670944\u4eba\u300149\u4eba\u548c42\u4eba\u3002
\u4f8b4 \u5218\u8001\u5e08\u5e26\u4e8641\u540d\u540c\u5b66\u53bb\u5317\u6d77\u516c\u56ed\u5212\u8239\uff0c\u5171\u79df\u4e8610\u6761\u8239.\u6bcf\u6761\u5927\u8239\u57506\u4eba\uff0c\u6bcf\u6761\u5c0f\u8239\u57504\u4eba\uff0c\u95ee\u5927\u8239\u3001\u5c0f\u8239\u5404\u79df\u51e0\u6761\uff1f
[\u5206\u6790] \u6211\u4eec\u5206\u6b65\u6765\u8003\u8651\uff1a
\u2460\u5047\u8bbe\u79df\u7684 10\u6761\u8239\u90fd\u662f\u5927\u8239\uff0c\u90a3\u4e48\u8239\u4e0a\u5e94\u8be5\u5750 6\u00d710= 60\uff08\u4eba\uff09\u3002
\u2461\u5047\u8bbe\u540e\u7684\u603b\u4eba\u6570\u6bd4\u5b9e\u9645\u4eba\u6570\u591a\u4e86 60-\uff0841+1\uff09=18\uff08\u4eba\uff09\uff0c\u591a\u7684\u539f\u56e0\u662f\u628a\u5c0f\u8239\u5750\u76844\u4eba\u90fd\u5047\u8bbe\u6210\u57506\u4eba\u3002
\u2462\u4e00\u6761\u5c0f\u8239\u5f53\u6210\u5927\u8239\u591a\u51fa2\u4eba\uff0c\u591a\u51fa\u768418\u4eba\u662f\u628a18\u00f72=9\uff08\u6761\uff09\u5c0f\u8239\u5f53\u6210\u5927\u8239\u3002
\u89e3\uff1a[6\u00d710-(41+1\uff09\u00f7\uff086-4\uff09
= 18\u00f72=9\uff08\u6761\uff09 10-9=1\uff08\u6761\uff09
\u7b54\uff1a\u67099\u6761\u5c0f\u8239\uff0c1\u6761\u5927\u8239\u3002
\u4f8b5 \u6709\u8718\u86db\u3001\u873b\u8713\u3001\u8749\u4e09\u79cd\u52a8\u7269\u517118\u53ea\uff0c\u5171\u6709\u817f118\u6761\uff0c\u7fc5\u818020\u5bf9\uff08\u8718\u86db8\u6761\u817f\uff1b\u873b\u87136\u6761\u817f\uff0c\u4e24\u5bf9\u7fc5\u8180\uff1b\u87496\u6761\u817f\uff0c\u4e00\u5bf9\u7fc5\u8180\uff09\uff0c\u6c42\u873b\u8713\u6709\u591a\u5c11\u53ea\uff1f
[\u5206\u6790] \u8fd9\u662f\u5728\u9e21\u5154\u540c\u7b3c\u57fa\u7840\u4e0a\u53d1\u5c55\u53d8\u5316\u7684\u95ee\u9898.\u89c2\u5bdf\u6570\u5b57\u7279\u70b9\uff0c\u873b\u8713\u3001\u8749\u90fd\u662f6\u6761\u817f\uff0c\u53ea\u6709\u8718\u86db8\u6761\u817f.\u56e0\u6b64\uff0c\u53ef\u5148\u4ece\u817f\u6570\u5165\u624b\uff0c\u6c42\u51fa\u8718\u86db\u7684\u53ea\u6570.\u6211\u4eec\u5047\u8bbe\u4e09\u79cd\u52a8\u7269\u90fd\u662f6\u6761\u817f\uff0c\u5219\u603b\u817f\u6570\u4e3a 6\u00d718=108\uff08\u6761\uff09\uff0c\u6240\u5dee 118-108=10\uff08\u6761\uff09\uff0c\u5fc5\u7136\u662f\u7531\u4e8e\u5c11\u7b97\u4e86\u8718\u86db\u7684\u817f\u6570\u800c\u9020\u6210\u7684.\u6240\u4ee5\uff0c\u5e94\u6709\uff08118-108\uff09\u00f7\uff088-6\uff09=5\uff08\u53ea\uff09\u8718\u86db.\u8fd9\u6837\u5269\u4e0b\u768418-5=13\uff08\u53ea\uff09\u4fbf\u662f\u873b\u8713\u548c\u8749\u7684\u53ea\u6570.\u518d\u4ece\u7fc5\u8180\u6570\u5165\u624b\uff0c\u5047\u8bbe13\u53ea\u90fd\u662f\u8749\uff0c\u5219\u603b\u7fc5\u8180\u65701\u00d713=13\uff08\u5bf9\uff09\uff0c\u6bd4\u5b9e\u9645\u6570\u5c11 20-13\uff1d7\uff08\u5bf9\uff09\uff0c\u8fd9\u662f\u7531\u4e8e\u873b\u8713\u6709\u4e24\u5bf9\u7fc5\u8180\uff0c\u800c\u6211\u4eec\u53ea\u6309\u4e00\u5bf9\u7fc5\u8180\u8ba1\u7b97\u6240\u5dee\uff0c\u8fd9\u6837\u873b\u8713\u53ea\u6570\u53ef\u6c427\u00f7\uff082-1\uff09=7\uff08\u53ea\uff09.
\u89e3\uff1a\u2460\u5047\u8bbe\u8718\u86db\u4e5f\u662f6\u6761\u817f\uff0c\u4e09\u79cd\u52a8\u7269\u5171\u6709\u591a\u5c11\u6761\u817f\uff1f
6\u00d718=108\uff08\u6761\uff09
\u2461\u6709\u8718\u86db\u591a\u5c11\u53ea\uff1f
\uff08118-108\uff09\u00f7\uff088-6\uff09=5\uff08\u53ea\uff09
\u2462\u873b\u8712\u3001\u8749\u5171\u6709\u591a\u5c11\u53ea\uff1f
18-5=13\uff08\u53ea\uff09
\u2463\u5047\u8bbe\u873b\u8712\u4e5f\u662f\u4e00\u5bf9\u7fc5\u8180\uff0c\u5171\u6709\u591a\u5c11\u5bf9\u7fc5\u8180\uff1f1\u00d713=13\uff08\u5bf9\uff09
\u2464\u873b\u8712\u591a\u5c11\u53ea\uff1f
\uff0820-13\uff09\u00f7 2-1\uff09= 7\uff08\u53ea\uff09
\u7b54\uff1a\u873b\u8712\u67097\u53ea.
绛旓細5銆佷竴鍙嫍杩借刀涓鍙厰瀛愶紝鐙楄烦璺6娆$殑鏃堕棿锛屽厰鍙兘璺宠穬5娆★紝鐙楄烦璺4娆$殑璺濈鍜屽厰璺宠穬7娆$殑璺濈鐩稿悓锛屽厰璺戜簡5.5鍗冪背浠ュ悗鐙楀紑濮嬪湪鍚庨潰杩斤紝鍏斿張璺戜簡澶氳繙琚嫍杩涓銆4.绮鹃鍒濅簩濂ユ暟棰澶у叏 1銆佷负鍒涘缓娴峰崕鍏徃锛屽紶銆佺帇銆佹潕涓変汉鍒嗗埆鎶曡祫100涓囧厓銆120涓囧厓鍜80涓囧厓銆傚湪浠栦滑涓変汉鐨勫叡鍚屽姫鍔涗笅锛屽埌骞存湯锛屽叕鍙稿叡...
绛旓細鎯:鐢遍鎰忕煡鍞辨瓕鐨70浜轰腑涔熸湁璺宠垶鐨,鍚屾牱璺宠垶鐨30浜轰腑涔熸湁鍞辨瓕鐨,鎶婁袱鑰呯浉鍔,杩欐牱鏃㈠敱姝屽張璺戣垶鐨勫氨缁熻浜嗕袱娆,鍐嶅噺鍘诲弬鍔犺〃婕旂殑80浜,灏辨槸鏃㈠敱姝屽張璺宠垶鐨勪汉鏁般 瑙:70+30-80 =100-80 =20(浜) 绛:鏃㈠敱姝屽張璺宠垶鐨勬湁20浜恒 34.瀛︽牎涓惧姙璇枃銆鏁板鍙岀绔炶禌,涓夊勾绾т竴鐝湁59浜,鍙傚姞璇枃绔炶禌鐨勬湁36浜,鍙傚姞...
绛旓細19,20,21鍥涗釜鏁颁腑鐨勪竴涓暟;鍥犱负杩欎袱涓暟鍒氬ソ鎶婂崄涓暟瀛0銆1銆2銆3銆4銆5銆6銆7銆8銆9鍏ㄩ兘鐢ㄤ笂浜,鍥涗綅鏁板拰鍏綅鏁版濂界敤浜嗗崄涓暟瀛,鎵浠ュ洓浣嶆暟鍜屽叚浣嶆暟涓病鏈夐噸澶嶆暟瀛,鐜板湪鏉ヤ竴涓楠岃瘉,20鐨勭珛鏂规槸80000,鏈夐噸澶;21鐨勫洓娆℃柟鏄194481,涔熸湁閲嶅;19鐨勫洓娆℃柟鏄130321;涔熸湁閲嶅;18鐨勭珛鏂规槸5832,18鐨勫洓娆℃柟鏄10...
绛旓細鍥犳EF=BP=鈭(AB^2+AP^2)=鈭(25^2+6.6^2)=鈭668.56鈮25.86 锛堟垨鑰咃細EF=BP=鈭(AB^2+AP^2)=鈭歔25^2+(6鈭6)^2]=鈭841=29銆傜湅涓嶆噦AP鐨勯暱搴︾┒绔熸槸澶氬皯锛屽彧濂戒袱绉嶇粨鏋滈兘鍐欎笂浜嗭級3銆佸彇EC涓偣D锛岃繛鎺D 璁綞C闀=2X锛屽垯BE=3X锛孉B=8X锛孍D=DC=X锛屽垯ED=3X+X=4X锛孊C=3X+2X=5...
绛旓細棰1:鏌愬湴鐢熶骇涓绉嶇豢鑹茶敩鑿,鑻ュ湪甯傚満涓婄洿鎺ラ攢鍞,姣忓惃鍒╂鼎涓1000鍏;缁忕矖鍔犲伐鍚庢瘡鍚ㄥ埄娑﹀彲杈4500鍏;缁忕簿鍔犲伐鍚庨攢鍞,姣忓惃鍒╂鼎娑ㄨ嚦7500鍏,褰撳湴涓瀹跺啘宸ュ晢鍏徃鏀惰幏杩欑钄彍140t,璇ュ叕鍙哥殑鍔犲伐鑳藉姏鏄:濡傛灉瀵硅敩鑿滆繘琛岀矖鍔犲伐,姣忓ぉ鍙姞宸16t;濡傝繘琛岀簿鍔犲伐,姣忓ぉ鍙姞宸6t,浣嗕袱绉嶅姞宸ユ柟寮忎笉鍙悓鏃惰繘琛,鍙楀鑺傛潯浠堕檺鍒,鍏徃蹇呴』鍦...
绛旓細鍒濅簩涓婂唽鏁板50閬撳ゥ鏁伴鍙婄瓟妗 1涓洖绛 #鐑# 鐢佃鍓с婄帇鐗岄儴闃熴嬫湁鍝簺妲界偣?鎴婄啓鏄0T 2014-08-17 路 TA鑾峰緱瓒呰繃120涓禐 鐭ラ亾绛斾富 鍥炵瓟閲:130 閲囩撼鐜:0% 甯姪鐨勪汉:105涓 鎴戜篃鍘荤瓟棰樿闂釜浜洪〉 鍏虫敞 灞曞紑鍏ㄩ儴 棰1:鏌愬湴鐢熶骇涓绉嶇豢鑹茶敩鑿,鑻ュ湪甯傚満涓婄洿鎺ラ攢鍞,姣忓惃鍒╂鼎涓1000鍏;缁忕矖鍔犲伐鍚...
绛旓細鍥惧氨鏄 涓涓笁瑙掑舰ABC D鍦˙C涓 杩炴帴AD 鐒跺悗鍙︿竴涓笁瑙掑舰鐨勪竴鏉¤竟灏辨槸AD锛岀劧鍚庢湁涓鏉′笌BC骞宠鐨凙E锛屽啀杩炴帴DE 瑙o細璁锯垹B涓篨锛屸垹BAD涓篩锛屸垹DAC涓篫锛屸埖鈭燘AD=鈭燙AE=鈭燛DC,鈭燗CE=鈭燛,AE鈥朆C,鈭燙DE=鈭燙AE=鈭燚EA=鈭燚CA=鈭燳锛屽嵆X=Y 鈭碭+Y+Z+鈭燛=180掳 X+2*Y+Z+3*鈭燛=360掳 Y...
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