It is uncertain____side effect the medicine will bring about，although about two thousand patients ha...
2022-11-28 06:18:42 36次 2013-2014学年高考专题万卷检测：专题六 名词性从句英语试卷（解析版） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
It is uncertain____side effect the medicine will bring about，although about two thousand patients have taken it.
A.that B.what C.how D.whether
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