题目内容:
He has made another wonderful discovery,__________of great importance to science.
A.which I think is B.which I think it is C.I think which is D.ofwhich I think it iS
参考答案:
答案解析:
He has made another wonderful discovery,__________of great importance to science.
A.which I think is B.which I think it is C.I think which is D.ofwhich I think it iS