What might be the causes of cheating according to the text?
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What can parents do to lead children to avoid cheating?
What can teachers do to reduce the possibility of cheating in school?
本质上讲Logistic回归是一种
A. 分类方法
B. 排序方法
C. 模型方法
D. 展示方法
某结核病患儿，发热、咳嗽、日渐消瘦3周，怀疑粟粒型肺结核，哪项检查最重要
A.结核菌素试验
B.血沉
C.X线胸片
D.淋巴结活检
E.腰穿
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