2015经济类联考数学冲刺模拟五
1.若http://file.koolearn.com/2014/0219/20140219024558965.gif
，则
http://file.koolearn.com/2014/0219/20140219024559363.gif
的值是()
A.0 B.280 C.100 D.-100 E.以上结果都不正确
2.已知
http://file.koolearn.com/2014/0219/20140219024559474.gif
，
http://file.koolearn.com/2014/0219/20140219024603139.gif
，
http://file.koolearn.com/2014/0219/20140219024603791.gif
，则
http://file.koolearn.com/2014/0219/20140219024603155.gif
( )
A.2 B.-2 C.12 D.-12 E.以上结果都不正确
3.已知
http://file.koolearn.com/2014/0219/20140219024604612.gif
，则
http://file.koolearn.com/2014/0219/20140219024604548.gif
( )
A.
http://file.koolearn.com/2014/0219/20140219024605608.gif
B.10 C.3 D.2
http://file.koolearn.com/2014/0219/20140219024605864.gif
+2 E.以上结果都不正确
4.已知
http://file.koolearn.com/2014/0219/20140219024605163.gif
，则实数
http://file.koolearn.com/2014/0219/20140219024606555.gif
的取值范围是( )
A.
http://file.koolearn.com/2014/0219/20140219024606347.gif
或
http://file.koolearn.com/2014/0219/20140219024607742.gif
B.
http://file.koolearn.com/2014/0219/20140219024607527.gif
C.
http://file.koolearn.com/2014/0219/20140219024608388.gif
D.
http://file.koolearn.com/2014/0219/20140219024608192.gif
E.以上结果都不正确
5.设
http://file.koolearn.com/2014/0219/20140219024609393.gif
为整数，且
http://file.koolearn.com/2014/0219/20140219024609229.gif
，则
http://file.koolearn.com/2014/0219/20140219024610339.gif
( )
A.2 B.3 C.4 D.-3 E.-2
答案：1C 2C 3B 4C 5A
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