2014年成人高考专升本《高数二》应试模拟题(2)
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1、
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A.?(1,2)不是极大值
B.?(1,2)不是极小值
C.?(1,2)是极大值
D.?(1,2)是极小值
2、
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A.
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B.
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C.
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D.
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3、设函数?(x)=sin(x2)+e-2x,则?ˊ(x)等于().
A.
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B.
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C.
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D.
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4、已知y=2x+x2+e2,则 yˊ等于( ).
A.
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B.
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C.
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D.
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5、由曲线y=-x2,直线x=1及x轴所围成的面积S等于( ).
A.-1/3
B.-1/2
C.1/3
D.1/2
6、
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A.
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B.
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C.(0,1)
D.
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7、设100件产品中有次品4件,从中任取5件的不可能事件是( ).
A.“5件都是正品”
B.“5件都是次品”
C.“至少有1件是次品”
D.“至少有1件是正品”
8、设函数?(sinx)=sin2x,则?ˊ(x)等于( ).
A.2cosx
B.-2sinxcosx
C.%
D.2x
9、
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A.1
B.1/2
C.-1/2
D.+∞
10、设函数?(x)在点x0处连续,则下列结论肯定正确的是( ).
A.
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B.
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C.当x→x0时, ?(x)- ?(x0)不是无穷小量
D.当x→x0时, ?(x)- ?(X0)必为无穷小量
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