Itook mathematics and physics because I think that____very important for me to make further researc
A.what is B.they are C.this D.which are
人气：441 ℃ 时间：2019-09-20 06:13:07
解答
that 引导的是宾语从句,后面的句子必须是完整的句子.所以选择B
it is...for sb to do sth 是一个句式,意思是：对某人来说做某事很...样.这里前面有数学和物理所以用了 they are.意思是对我而言,数学和物理很重要,能使我作更深地研究
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