无应答偏倚属于（）
A．选择偏倚
B．信息偏倚
C．混杂偏倚
D．随机偏倚
E．系统偏倚
参考答案：B
解析：
无应答偏倚属于信息偏倚。
用单词的适当形式填空。
1. He is 10 ___ (year) old.
2. His father often ______ (relax) for half an hour after lunch.
3.There are many green ______ (leaf) on the tree in summer.
4. Molly likes ___ (play) with her friends and eats ____ (grass).
5. Bill usually ______ (sleep) during the day.
白假丝酵母菌致病特点是什么？
