As far as we know, traveling in space has been made with the development of science and te

发布时间：2020-08-16 10:15:14

As far as we know, traveling in space has been made      with the development of science and technology.
A. it was possible
B. it possible
C. possible
D. that possible

网友回答

A. it was possible
B. it possible
(答案→)C. possible
D. that possible
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