简述精神分析学派的几个特点。
参考答案：
1、非学院派
2、以非正常人为研究对象
3、重点研究潜意识
4、多采用临床法
_________ he was, he still went on with his work.
A．Tired although
B．Tiring as
C．Tired though
D．While tired
抽样检验过程中，存在哪两类错误？
