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问题 单项选择题

两个临床应用目的相同的试验，评价它的临床应用价值大小的可靠方法是（）

A.敏感度

B.特异度

C.预测值

D.ROC曲线下覆盖的面积

E.临界值确定是否合理

答案

参考答案：D

听力题

根据短文意思及首字母提示，在空白处填入一个适当的单词，使短文通顺、完整。

Hello! Come and buy your clothes at Fangfang’s great s      (1)! Do you like skirts? We have skirts at a very good p        (2)—only ￥5. Do you w       (3) to buy bags? We also have great bags for only ￥10! You can b       (4) sweaters in red, green, and white for only ￥28! We also have sports socks for only ￥5 each! What other things do you n      (5)? Come and see for yourself.
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问答题 简答题

温度过高或过低为什么不利于根系吸水？
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