题目内容
It is an interesting fact _______ men try to do the same things as nature does, they usually have to do them in a different way.
A. that when B. when that C. that D. when
A
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题目内容
It is an interesting fact _______ men try to do the same things as nature does, they usually have to do them in a different way.
A. that when B. when that C. that D. when
A