1. (2011 安徽省) 根据里氏震级的定义，地震所释放的相对能量![](https://wkrtcs.bdimg.com/rtcs/image?w=16&md5sum=ee2c22ccb3535d396602dc2ea67c835f&sign=edacffbe76&rtcs_flag=1&rtcs_ver=3.1&l=webapp&bucketNum=19&ipr={"t":"img","w":"16","h":"17.333333333333","dataType":"gif","c":"word/media/image1.png"})
与震级的关系为：，那么9级地震所释放的相对能量是7级地震所释放的相对能量的倍数是 ．
答案：100
2. (2011 福建省泉州市)![](https://wkrtcs.bdimg.com/rtcs/image?w=40&md5sum=ee2c22ccb3535d396602dc2ea67c835f&sign=edacffbe76&rtcs_flag=1&rtcs_ver=3.1&l=webapp&bucketNum=19&ipr={"t":"img","w":"40","h":"21.333333333333","dataType":"gif","c":"word/media/image4.png"})
等于（ ）
A．![](https://wkrtcs.bdimg.com/rtcs/image?w=28&md5sum=ee2c22ccb3535d396602dc2ea67c835f&sign=edacffbe76&rtcs_flag=1&rtcs_ver=3.1&l=webapp&bucketNum=19&ipr={"t":"img","w":"28","h":"21.333333333333","dataType":"gif","c":"word/media/image5.png"})
B． C． D．
答案：B；
3. (2011 广东省佛山市) 计算：![](https://wkrtcs.bdimg.com/rtcs/image?w=65.333333333333&md5sum=ee2c22ccb3535d396602dc2ea67c835f&sign=edacffbe76&rtcs_flag=1&rtcs_ver=3.1&l=webapp&bucketNum=19&ipr={"t":"img","w":"65.333333333333","h":"24","dataType":"gif","c":"word/media/image9.png"})
的值是（ ）
A．0 B．12 C．16 D．18
答案：A
4. (2011 山东省烟台市) (－2)0的相反数等于（ ）
A.1 B.－1 C.2 D.－2
答案：B
5. (2011 广东省珠海市) 化简![](https://wkrtcs.bdimg.com/rtcs/image?w=40&md5sum=ee2c22ccb3535d396602dc2ea67c835f&sign=edacffbe76&rtcs_flag=1&rtcs_ver=3.1&l=webapp&bucketNum=19&ipr={"t":"img","w":"40","h":"24","dataType":"gif","c":"word/media/image10.png"})
的结果是（ ）
A．![](https://wkrtcs.bdimg.com/rtcs/image?w=20&md5sum=ee2c22ccb3535d396602dc2ea67c835f&sign=edacffbe76&rtcs_flag=1&rtcs_ver=3.1&l=webapp&bucketNum=19&ipr={"t":"img","w":"20","h":"20","dataType":"gif","c":"word/media/image11.png"})
B． C． D．
答案：A
6. (2011 广西贺州市) 计算![](https://wkrtcs.bdimg.com/rtcs/image?w=42.666666666667&md5sum=ee2c22ccb3535d396602dc2ea67c835f&sign=edacffbe76&rtcs_flag=1&rtcs_ver=3.1&l=webapp&bucketNum=19&ipr={"t":"img","w":"42.666666666667","h":"24","dataType":"gif","c":"word/media/image15.png"})
的结果是_________．
答案：![](https://wkrtcs.bdimg.com/rtcs/image?w=32&md5sum=ee2c22ccb3535d396602dc2ea67c835f&sign=edacffbe76&rtcs_flag=1&rtcs_ver=3.1&l=webapp&bucketNum=19&ipr={"t":"img","w":"32","h":"21.333333333333","dataType":"gif","c":"word/media/image16.png"})
7. (2011 海南省) 计算![](https://wkrtcs.bdimg.com/rtcs/image?w=37.333333333333&md5sum=ee2c22ccb3535d396602dc2ea67c835f&sign=edacffbe76&rtcs_flag=1&rtcs_ver=3.1&l=webapp&bucketNum=19&ipr={"t":"img","w":"37.333333333333","h":"32","dataType":"gif","c":"word/media/image17.png"})
，正确结果是（ ）
A．![](https://wkrtcs.bdimg.com/rtcs/image?w=20&md5sum=ee2c22ccb3535d396602dc2ea67c835f&sign=edacffbe76&rtcs_flag=1&rtcs_ver=3.1&l=webapp&bucketNum=19&ipr={"t":"img","w":"20","h":"21.333333333333","dataType":"gif","c":"word/media/image6.png"})
Ｂ． Ｃ． Ｄ．
答案：B
8. (2011 浙江省杭州市) ![](https://wkrtcs.bdimg.com/rtcs/image?w=80&md5sum=ee2c22ccb3535d396602dc2ea67c835f&sign=edacffbe76&rtcs_flag=1&rtcs_ver=3.1&l=webapp&bucketNum=19&ipr={"t":"img","w":"80","h":"24","dataType":"wmf","c":"word/media/image19.png","imgOriW":160,"imgOriH":48})
（ ）
A. ![](https://wkrtcs.bdimg.com/rtcs/image?w=46.666666666667&md5sum=ee2c22ccb3535d396602dc2ea67c835f&sign=edacffbe76&rtcs_flag=1&rtcs_ver=3.1&l=webapp&bucketNum=19&ipr={"t":"img","w":"46.666666666667","h":"21.333333333333","dataType":"wmf","c":"word/media/image20.png","imgOriW":93,"imgOriH":42})
B. C. D.
答案：D
9. (2011 浙江省湖州市) 计算，正确的结果是（ ）
A．2![](https://wkrtcs.bdimg.com/rtcs/image?w=20&md5sum=ee2c22ccb3535d396602dc2ea67c835f&sign=edacffbe76&rtcs_flag=1&rtcs_ver=3.1&l=webapp&bucketNum=19&ipr={"t":"img","w":"20","h":"21.333333333333","dataType":"gif","c":"word/media/image7.png"})
Ｂ．2 Ｃ． Ｄ．
答案：D
10. (2011 浙江省台州市) 计算![](https://wkrtcs.bdimg.com/rtcs/image?w=36&md5sum=ee2c22ccb3535d396602dc2ea67c835f&sign=edacffbe76&rtcs_flag=1&rtcs_ver=3.1&l=webapp&bucketNum=19&ipr={"t":"img","w":"36","h":"24","dataType":"gif","c":"word/media/image24.png"})
的结果是（ ）
A． B． C． D．
答案：D
11. (2011 重庆市) 计算![](https://wkrtcs.bdimg.com/rtcs/image?w=37.333333333333&md5sum=ee2c22ccb3535d396602dc2ea67c835f&sign=edacffbe76&rtcs_flag=1&rtcs_ver=3.1&l=webapp&bucketNum=19&ipr={"t":"img","w":"37.333333333333","h":"32","dataType":"gif","c":"word/media/image27.png"})
的结果是（ ）
A．![](https://wkrtcs.bdimg.com/rtcs/image?w=13.333333333333&md5sum=ee2c22ccb3535d396602dc2ea67c835f&sign=edacffbe76&rtcs_flag=1&rtcs_ver=3.1&l=webapp&bucketNum=19&ipr={"t":"img","w":"13.333333333333","h":"16","dataType":"gif","c":"word/media/image28.png"})
Ｂ． Ｃ． Ｄ．
答案：C
12. (2011 黑龙江省鸡西市) 下列各式：①![](https://wkrtcs.bdimg.com/rtcs/image?w=41.333333333333&md5sum=ee2c22ccb3535d396602dc2ea67c835f&sign=edacffbe76&rtcs_flag=1&rtcs_ver=3.1&l=webapp&bucketNum=19&ipr={"t":"img","w":"41.333333333333","h":"21.333333333333","dataType":"gif","c":"word/media/image29.png"})
②③④ ⑤， 其中正确的是 ( )
A．①②③ B． ①③⑤ C．②③④ D．②④⑤
答案：D
13. (2011 山东省日照市) 下列等式一定成立的是( )
A． a2+a3=a5 B．（a+b）2=a2+b2
C．（2ab2）3=6a3b6 D．（x-a）（x-b）=x2-（a+b）x+ab
答案：D
14. (2011 吉林省长春市) 计算：![](https://wkrtcs.bdimg.com/rtcs/image?w=40&md5sum=ee2c22ccb3535d396602dc2ea67c835f&sign=edacffbe76&rtcs_flag=1&rtcs_ver=3.1&l=webapp&bucketNum=19&ipr={"t":"img","w":"40","h":"20","dataType":"gif","c":"word/media/image34.png"})
=_____________．
答案：![](https://wkrtcs.bdimg.com/rtcs/image?w=17.333333333333&md5sum=ee2c22ccb3535d396602dc2ea67c835f&sign=edacffbe76&rtcs_flag=1&rtcs_ver=3.1&l=webapp&bucketNum=19&ipr={"t":"img","w":"17.333333333333","h":"20","dataType":"gif","c":"word/media/image35.png"})
15. (2011 江苏省连云港市) a2·a3等于（ ）
A．a5 B．a6 C．a8 D．a9
答案：A
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