2012年广东省广州市中考数学试卷及答案
2012年广州市中考数学试卷(解析版)一、选择题(本大题共10小题,每小题3分,满分30分.在每小题给出的四个选项中只有一项是符合题目要求的)1.(2012•广州)实数3的倒数是( ) A.﹣ B. C.﹣3 D.32.(2012•广州)将二次函数y=x2的图象向下平移一个单位,则平移以后的二次函数的解析式为( ) A.y=x21﹣ B.y=x2+1 C.y=(x1﹣)2 D.y=(x+1)23.(2012•广州)一个几何体的三视图如图所示,则这个几何体是( ) A.四棱锥 B.四棱柱 C.三棱锥 D.三棱柱6.(2012•广州)已知|a1|+﹣=0,则a+b=(...
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