3,4,5,6,7题

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3,4,5,6,7题3,4,5,6,7题 3,4,5,6,7题2:D,3:D,4:D,5:A,6:B,7:D

3,4,5,6,7题
3,4,5,6,7题
 

3,4,5,6,7题
2:D,
3:D,
4:D,
5:A,
6:B,
7:D