单选题：The study actually proved for the first time the benefit of

题目内容：

The study actually proved for the first time the benefit of stem cell therapy． A．Right
B．Wrong
C．Not mentioned

参考答案：

答案解析：

根据下列文章,请回答题。Stem Cell Therapy May Help Repair the HeartAccor

根据下列文章,请回答题。Stem Cell Therapy May Help Repair the HeartAccording to scientists i

分类：卫生类题型：单选题

Her mood can be gauged by her reaction to the most trivial of incidents．A．displa

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Many scientists have been probing psychological problems．A．solving B．exploring C

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These are the motives for doing it．A．reasons B．excuses C．answers D．replies

分类：卫生类题型：单选题

分类：卫生类题型：单选题