He made another wonderful discovery ,___of great importance to sc_英语解答

He made another wonderful discovery ,___of great importance to science .A.which I think is.
B.which I think it is.C.which I think it.选哪一个?怎么译?

人气：260 ℃　时间：2020-02-06 02:30:58

解答

A
他又有一个棒极了的发现,我认为这个发现对于科学是很重要的.