设集合，则使M∩N＝N成立的的值是 ( )_刷题宝

题干

设集合

，

则使M∩N＝N成立的

的值是 ( )

A：1或－1

B：0

C：－1

D：1

上一题下一题 0.0难度选择题更新时间:2017-11-29 05:46:59

答案(点此获取答案解析）

C

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