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我们不是只做了一组临床试验，我们有两组以供对比。
Not only do we have one clinical trial, we have two.
youdao
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临床试验中最常见的设计是平行组设计和交叉设计。
The most common designs in clinical trial are parallel design and cross over design.
youdao
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临床试验中最常见的设计是平行组设计和交叉设计。
The most common designs in clinical trial are parallel design and cross over design.
youdao