As it reported, it is 100 years Qinghua University was founded.A. whenB. beforeC. afterD.

发布时间：2020-08-16 17:57:08

As it reported, it is 100 years     Qinghua University was founded.
A. when
B. before
C. after
D. since

网友回答

A. when
B. before
C. after
(答案→)D. since
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