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(2008•鄂州)在反比例函数y=的图象中,阴影部分的面积不等于4的是( ) A...
(2008•鄂州)在反比例函数y=
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的图象中,阴影部分的面积不等于4的是( )
A.
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B.
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C.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/201310201203425769199696/SYS201310201203425769199006_ST/images3.png)
D.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/201310201203425769199696/SYS201310201203425769199006_ST/images4.png)
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(2008•鄂州)如图,已知△ABC中,∠ABC=45°,AC=4,H是高AD和BE的交点,则线段BH的长度为( )
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A.
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B.4
C.
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D.5
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(2009•鄂州)图是由几个相同的小正方体搭建的几何体的俯视图,小正方形中的数字表示在该位置的小正方体的个数,这个几何体的主视图是( )
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A.
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B.
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C.
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D.
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(2008•鄂州)不等式组
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的解集在数轴上可表示为( )
A.
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B.
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C.
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D.
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(2008•鄂州)数据0,-1,6,1,x的众数为-1,则这组数据的方差是( )
A.2
B.
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C.
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D.
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(2008•鄂州)已知
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,则a的取值范围是( )
A.a≤0
B.a<0
C.0<a≤1
D.a>0
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