A、<img width="68" height="20" src="https://static.tiw.cn//s/tiw/p3/UpLoadImage/2016-09-01/1ec76abd-a42f-4104-964e-96b328bf25f7.png">
B、<img width="55" height="20" src="https://static.tiw.cn//s/tiw/p3/UpLoadImage/2016-09-01/228e3105-d989-42c4-9bbe-d2ef6eadc6fb.png">
C、<img width="70" height="20" src="https://static.tiw.cn//s/tiw/p3/UpLoadImage/2016-09-01/3de6378e-a0fd-4458-bfaa-c38a5c593bac.png">
D、<img width="55" height="21" src="https://static.tiw.cn//s/tiw/p3/UpLoadImage/2016-09-01/3ff3f1f2-9d2d-47cf-9869-e16423bb5cae.png">
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试题解析
∵M∩N=N,
.