2013年成人高考高升本《理科数学》模拟试卷(5)
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一、选择题:本大题共17个小题,每小题5分,共85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、
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B.
C.
D.
2、 若a,b,c成等比数列,则lga,lgb,lgc成( )
A.等比数列
B.等差数列
C.等比数列或等差数列
D.无法确定
3、
A.
B.
C.
D.
4、
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A.m<2或m>3
B.2<m<3
C.m>3
D.
5、
A.没有极大值
B.没有极小值
C.的极大值为-1
D.的极小值为-1
6、
已知点P(sinα—COSα/,tanα)在象限,则在[0,2π)内α的取值范围是( )
A.
B.
C.
D.
7、
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A.m=3,n=1
B.m=-3,n=1
C.
D.
8、
若a,β是两个相交平面,点A不在α内,也不在β内,则过A且与α和ρ都平行的直线( )
A.只有一条
B.只有两条
C.只有四条
D.有无数条
9、
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A.8x-4y+25=O
B.8x+4y+25=0
C.8x-4y-25=0
D.8x+4y-25=0
10、 已知a=(3,6),b=(-4,x),且a上b,则x的值是( )
A.1
B.-1
C.2
D.-2
1、
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A.
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B.
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C.
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D.
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2、 若a,b,c成等比数列,则lga,lgb,lgc成( )
A.等比数列
B.等差数列
C.等比数列或等差数列
D.无法确定
3、

A.
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B.
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C.
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D.
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4、

A.m<2或m>3
B.2<m<3
C.m>3
D.
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5、
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A.没有极大值
B.没有极小值
C.的极大值为-1
D.的极小值为-1
6、
已知点P(sinα—COSα/,tanα)在象限,则在[0,2π)内α的取值范围是( )
A.
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B.
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C.
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D.
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7、
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A.m=3,n=1
B.m=-3,n=1
C.
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D.
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8、
若a,β是两个相交平面,点A不在α内,也不在β内,则过A且与α和ρ都平行的直线( )
A.只有一条
B.只有两条
C.只有四条
D.有无数条
9、

A.8x-4y+25=O
B.8x+4y+25=0
C.8x-4y-25=0
D.8x+4y-25=0
10、 已知a=(3,6),b=(-4,x),且a上b,则x的值是( )
A.1
B.-1
C.2
D.-2