设全集
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,
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,
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,则
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是( )
A.(0,1) | B.(0,1] | C. | D. |
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科目:高中数学
来源:不详
题型:解答题
已知集合

(1)若

,求

的取值范围
(2)若

,求

的取值范围
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科目:高中数学
来源:不详
题型:单选题
若全集
U={-1,0,1,2},
P={
x∈Z |
x2<2},则

=
A.{2} | B.{0,2} | C.{-1,2} | D.{-1,0,2} |
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科目:高中数学
来源:不详
题型:单选题
设集合

,若

,则实数

的值是
A.1 | B.-1 | C. | D.0 或 |
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