Scientists are trying to develop a special material, _______ they will make use of in space. A. that...
2022-12-24 12:49:52 34次 2013届山东省高三第二次质量检测英语试卷（解析版） 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 space.
A.
that B. what
C. it D.
one
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