问题描述：
The young man is a scientist.He has ___knowledge on computer A.many B.a lot C.much D.a bit
the young man is a scientist.he has ___knowledge on computer
A.many B.a lot C.much D.a bit
the young man is a scientist.he has ___knowledge on computer
A.many B.a lot C.much D.a bit
问题解答：
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