A.Women were forbidden to visit any pub.B.Men often took their wives to pubs.C.Only pe

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A.Women were forbidden to visit any pub.

B.Men often took their wives to pubs.

C.Only people of lower social classes went to pubs.

D.Pubs were always crowded as they opened only at certain times.

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热搜:a是b的充分条件,b是a的必要条件吗