题干He put forward a theory,_______ of great importance to the prog_英语解答

题干
He put forward a theory,_______ of great importance to the progress of science and technology.
选择一项：
a.I think which is
b.which I think is
c.I think it is
d.which is I think

人气：333 ℃　时间：2020-04-04 10:37:06

解答

B
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