2015经济类联考数学模拟一(6-10)
6.http://file.koolearn.com/2014/0118/20140118125246627.gif
为有理数,且等式
http://file.koolearn.com/2014/0118/20140118125246193.gif
成立,则
http://file.koolearn.com/2014/0118/20140118125247139.gif
的值等于( )
A. 0 B. 1 C. 2 D. 3 E.以上结论均不正确
7.已知
http://file.koolearn.com/2014/0118/20140118125253448.gif
为质数,且
http://file.koolearn.com/2014/0118/20140118125253689.gif
,则以
http://file.koolearn.com/2014/0118/20140118125254882.gif
为边长的三角形是( )
A.等边三角形 B.等腰但非直角三角形 C.直角三角形
D. 钝角三角形 E.以上答案都不对
8.若
http://file.koolearn.com/2014/0118/20140118125300784.gif
,则
http://file.koolearn.com/2014/0118/20140118125301407.gif
( )
A.-1 B. 0 C. 2 D. 1 E.-2
9.有一个四位数,它被131除余13,被132除余130,则此数字的各位数字之和为( )
A. 23 B. 24 C. 25 D. 26 E.27
10.
http://file.koolearn.com/2014/0118/20140118125301913.gif
()
A.
http://file.koolearn.com/2014/0118/20140118125304816.gif
B.
http://file.koolearn.com/2014/0118/20140118125308437.gif
C.
http://file.koolearn.com/2014/0118/20140118125312263.gif
D.
http://file.koolearn.com/2014/0118/20140118125319765.gif
E.
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