入院率偏倚又称()
A.Neyman偏倚
B.选择偏倚
C.Berkson偏倚
D.信息偏倚
E.混杂偏倚
参考答案:C
漆管主要用作电机、电器和仪表的引出线或连接线的绝缘套管。()
An ______ statement can perform a calculation and store the result in a variable so that it can be used later.
A.assignment B.executable C.input D.output