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【简答题】
以下与逻辑函数【图片】等价的逻辑函数有（ ） A. B. C. D.
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皮皮学刷刷变学霸
举一反三
【单选题】I would like to buy some good English reference books, but _______ was available from the bookstore, where I only found some Chinese ones.
A.
nothing
B.
no one
C.
none
D.
neither
【单选题】I would like to buy the black pen because I ___ that kind of pen ____ well.
A.
have told; writes
B.
have been told; writes
C.
was told; wrote
D.
have been told; is written
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