题目内容
It was during 533-544 ________ Jia Si Xie wrote a book called Qi Min Yao Shu.
[ ]
A.when
B.which
C.that
D.不填
答案:C
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题目内容
It was during 533-544 ________ Jia Si Xie wrote a book called Qi Min Yao Shu.
[ ]