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【简答题】
已知集合U={x|-3≤x≤3}，M={x|-1＜x＜1}，C U N={x|0＜x＜2}． 求：（1）集合N； （2）集合M∩（C U N）； （3）集合M∪N．
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A.
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B.
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C.
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D.
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E.
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B.
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C.
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D.
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E.
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