2015经济类联考数学冲刺模拟四
1.若http://file.koolearn.com/2014/0219/20140219024255994.gif
，则
http://file.koolearn.com/2014/0219/20140219024256919.gif
的值为()
A.7 B. 8 C.9 D.10 E.12
2.若
http://file.koolearn.com/2014/0219/20140219024256526.gif
，则
http://file.koolearn.com/2014/0219/20140219024256374.gif
( )
A.
http://file.koolearn.com/2014/0219/20140219024257335.gif
B.
http://file.koolearn.com/2014/0219/20140219024257115.gif
C.
http://file.koolearn.com/2014/0219/20140219024258761.gif
D.4 E.2
3.已知
http://file.koolearn.com/2014/0219/20140219024258251.gif
，则多项式
http://file.koolearn.com/2014/0219/20140219024259128.gif
的值为( )
A.1 B. 2 C.-1 D.0 E.1或-1
4.若
http://file.koolearn.com/2014/0219/20140219024259943.gif
，则
http://file.koolearn.com/2014/0219/20140219024300445.gif
的值是( )
A.-1 B. 0 C.1 D.2 E.3
5.已知
http://file.koolearn.com/2014/0219/20140219024300531.gif
，
http://file.koolearn.com/2014/0219/20140219024301480.gif
，则
http://file.koolearn.com/2014/0219/20140219024301189.gif
的值
A.大于零 B.等于零 C.大于等于零 D.小于零 E.小于等于零
答案：1B 2C 3D 4A 5D
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