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1 \u7684\u76f8\u53cd\u6570\u662f A\uff0e\uff0d2 B\uff0e2 C\uff0e\uff0d 2 1 D\uff0e 2 1 2\u3001\u636e\u7edf\u8ba1\uff0c2009\u5e74\u5728\u56fd\u9645\u91d1\u878d\u5371\u673a\u7684\u5f3a\u70c8\u51b2\u51fb\u4e0b\uff0c\u6211\u56fd\u56fd\u5185\u751f\u4ea7\u603b\u503c\u7ea6\u4e3a30 067 000 000 000\u5143\uff0c\u4ecd\u6bd4\u4e0a\u5e74\u589e\u957f9\uff0e0\uff05\u300230 067 000 000 000\u5143\u7528\u79d1\u5b66\u8ba1\u6570\u6cd5\u8868\u793a\u4e3a\uff08\u4fdd\u7559\u4e09\u4f4d\u6709\u6548\u6570\u5b57\uff09 A\uff0e3\uff0e0037\u00d71013 \u5143 B\uff0e3\uff0e00\u00d71013 \u5143 C\uff0e30\uff0e1\u00d71012 \u5143 D\uff0e3\uff0e01\u00d71013 \u5143 3\u3001\u4e0b\u5217\u8bf4\u6cd5\u4e2d\uff0c\u6b63\u786e\u7684\u662f A\uff0e\u76f4\u7ebfAB\u4e0e\u76f4\u7ebfBA\u662f\u540c\u4e00\u6761\u76f4\u7ebf B\uff0e\u5c04\u7ebfOA\u4e0e\u5c04\u7ebfAO\u662f\u540c\u4e00\u6761\u5c04\u7ebf C\uff0e\u5ef6\u957f\u7ebf\u6bb5 AB\u5230\u70b9C\uff0c\u4f7fAC\uff1dBC D\uff0e\u753b\u76f4\u7ebfAB\uff1d5cm 4\u3001\u4e0b\u5217\u7b49\u5f0f\u662f\u4e00\u5143\u4e00\u6b21\u65b9\u7a0b\u7684\u662f A\uff0ex2 \uff0b3x\uff1d6 B\uff0e2x\uff1d4 C\uff0e\uff0d 2 1 x\uff0dy\uff1d0 D\uff0ex\uff0b12\uff1dx\uff0d4 5\u3001\u4e0b\u5217\u5404\u5355\u9879\u5f0f\u4e2d\uff0c\u4e0d\u662f\u540c\u7c7b\u9879\u7684\u662f A\uff0ex3 y\u4e0e2y3 x B\uff0e\uff0d7\uff0e2a2 \u4e0e2\uff0e7a2 C\uff0e25 \u4e0e52 D\uff0e\uff0d 8 1a2b2c\u4e0e8a2cb2 6\u3001\u5982\u4e0b\u56fe\u6240\u793a\uff0c\u70b9O\u4e3a\u76f4\u7ebfAB\u4e0a\u4e00\u70b9\u2220AOC\uff1d\u2220DOE\uff1d90\u00b0\uff0c\u90a3\u4e48\u56fe\u4e2d\u4e92\u4f59\u89d2\u7684\u5bf9\u6570\u4e3a A\uff0e2\u5bf9 B\uff0e3\u5bf9 C\uff0e4\u5bf9 D\uff0e5\u5bf9 7\u3001\u5df2\u77e5x\uff1d2\u662f\u5173\u4e8ex\u7684\u65b9\u7a0b 3 1 x\uff0bk\uff1dk\uff08x\uff0b2\uff09\u7684\u89e3\uff0c\u5219k\u7684\u503c\u5e94\u4e3a A\uff0e 9 1 B\uff0e9 C\uff0e3 1 D\uff0e1 8\u3001\u82e5\u5355\u9879\u5f0f3x2b y\u4e0e2x4ya+1 \u7684\u548c\u4ecd\u662f\u4e00\u4e2a\u5355\u9879\u5f0f\uff0c\u5219ab\u7684\u503c\u4e3a
我只能说我在<5年中考3年模拟>上做过,要设不少未知数,（1）a/4
（2）a>=9，a属于自然数
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绛旓細杈涘姵鐨勪粯鍑哄繀鏈変赴鍘氬洖鎶,绱皵涓滄潵楦胯繍閫氬ぉ,绁:涓冨勾绾ф暟瀛鏈熸湯鑰冭瘯鏃惰兘瓒呮按骞冲彂鎸ャ傛垜鏁寸悊浜嗗叧浜庤嫃鏁欑増鍒濅竴鏁板涓婂唽鏈熸湯娴嬭瘯鍗,甯屾湜瀵瑰ぇ瀹舵湁甯姪! 鑻忔暀鐗鍒濅竴鏁板涓婂唽鏈熸湯娴嬭瘯棰 涓銆侀夋嫨棰:鏈ぇ棰樺叡8灏忛,姣忓皬棰2鍒,鍏辫16鍒.鍦ㄦ瘡灏忛鎵缁欑殑鍥涗釜閫夐」涓,鎭版湁涓椤规槸绗﹀悎棰樼洰瑕佹眰鐨,璇峰皢姝ｇ‘閫夐」鐨勫簭鍙峰～娑傚湪...
绛旓細鎴愬姛鐨勮姳鐢辨睏姘存祰鐏,鑹拌嫤鐨勬帢娴佸嚭鐢樼敎鐨勬硥,绁: 涓冨勾绾ф暟瀛 鏈熸湯鑰冭瘯鏃惰兘瓒呮按骞冲彂鎸ャ備笅闈㈡槸鎴戜负澶у绮惧績鏁寸悊鐨勮嫃鏁欑増涓冨勾绾т笂鍐屾暟瀛︽湡鏈祴璇曞嵎,浠呬緵鍙傝冦 鑻忔暀鐗涓冨勾绾т笂鍐屾暟瀛︽湡鏈祴璇曢 涓銆侀夋嫨棰(鏈ぇ棰樺叡鏈10灏忛.姣忓皬棰2鍒,鍏20鍒) 1.涓嬪垪杩愮畻姝ｇ‘鐨勬槸( ) A.锕2b+2a2b=a2b B.2a锕=2 C....
绛旓細涓冨勾绾ф暟瀛绗竴瀛︽湡鏈熸湯妯℃嫙璇曞嵎(2) 鐝骇___ 濮撳悕___ 鎴愮哗___ 涓.閫夋嫨棰 : 1.濡傚浘,浠嶢鍒癇鏈夊鏉￠亾璺,浜轰滑浼氳蛋涓棿鐨勭洿璺,鑰屼笉浼氳蛋鍏朵粬 鐨勬洸鎶樼殑璺,杩欐槸鍥犱负( ) A.涓ょ偣涔嬮棿绾挎鏈鐭 B.涓ゆ潯鐩寸嚎鐩镐氦鍙湁涓涓氦鐐 C.涓ょ偣纭畾涓鏉＄洿绾 D.鍏朵粬鐨勮矾琛屼笉閫 2.浠ｆ暟寮 鐨勫兼槸6,閭ｄ箞浠ｆ暟寮 鐨勫兼槸 (...
绛旓細D锛庝负浜嗕簡瑙ｆ垜甯備節骞寸骇瀛︾敓涓鏁板鎴愮哗锛屼粠鎵鏈夎冪敓鐨勮瘯鍗涓娊鍙1000浠借瘯鍗疯繘琛岀粺璁″垎鏋愶紝鍦ㄨ繖涓棶棰樹腑锛屾牱鏈槸琚娊鍙栫殑1000鍚嶅鐢燂紟8涓嬪垪璇存硶姝ｇ‘鐨勬槸 锛 锛堿锛庣洿绾緼B鍜岀洿绾緽A鏄袱鏉＄洿绾 B锛庡皠绾緼B鍜屽皠绾緽A鏄袱鏉″皠绾 C锛庣嚎娈礎B鍜岀嚎娈礏A鏄袱鏉＄嚎娈 D锛庣洿绾緼B鍜岀洿绾縜涓嶈兘鏄悓涓鏉＄洿绾 9 .瀵硅鐨...
绛旓細杩欑瘒涓冨勾绾ф暟瀛︿笂鍐涓鍏冧竴娆℃柟绋嬪簲鐢棰樻湡鏈璁粌璇曢鐨勬枃绔,鏄 鐗瑰湴涓哄ぇ瀹舵暣鐞嗙殑,甯屾湜瀵瑰ぇ瀹舵湁鎵甯姪! 鐭ヨ瘑鐐1:甯傚満缁忔祹銆佹墦鎶橀攢鍞棶棰 (1)鍟嗗搧鍒╂鼎=鍟嗗搧鍞环-鍟嗗搧鎴愭湰浠 (2)鍟嗗搧鍒╂鼎鐜= 脳100% (3)鍟嗗搧閿鍞=鍟嗗搧閿鍞环脳鍟嗗搧閿鍞噺(4)鍟嗗搧鐨勯攢鍞埄娑=(閿鍞环-鎴愭湰浠)脳閿鍞噺 (5)鍟嗗搧鎵撳嚑鎶樺嚭鍞,灏辨槸...
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