问题描述：
Don't look down
-----don't look down upon Bob,he has his own advantages.
-------Oh,yes.____others are weak,he is strong.
A.if B,when C.though D.where
-----don't look down upon Bob,he has his own advantages.
-------Oh,yes.____others are weak,he is strong.
A.if B,when C.though D.where
问题解答：
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