Scientists are trying to develop a special material, ________ they will make use of in spacecraft. A...
2023-01-18 04:55:00 58次 2010-2011学年浙江省高三上学期第一次月考英语卷 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
Scientists are trying
to develop a special material, ________ they will make use of in
spacecraft.
A. it B. one C.
that D. what
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