问题
选择题
As is reported, it is 100 years ________ Tsinghua University was founded.[ ]
A. when
B. before
C. after
D. since
答案
答案：D
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As is reported, it is 100 years ________ Tsinghua University was founded.[ ]
A. when
B. before
C. after
D. since
答案：D