中文谷Itisuncertain sideeffectthemedicinewillbringabou...
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问题详情：
It is uncertain side effect the medicine will bring about, although about two thousand patients have taken it.
A. what B. that C. how D. whether
【回答】
A
知识点：固定句型
题型：选择题
标签：
Itisuncertain
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