轴组的装配要求是轴和其上零件装配后（ ）。
A. 固定不动
B. 相对转动
C. 运转平稳
D. 提高转速
The author's primary purpose in the passage is to ______.
A. support Alcoholics Anonymous as a means of coping with alcoholism
B. present a learning paradigm that will help alcoholics to understand what causes their dependence upon alcohol
C. explain the application of a psychological approach to alcoholism
D. help researchers to formulate workable hypotheses about the treatment of 'alcoholism
Problems common to most countries include the social, economic ______ problems.
A. and politics
B. and with government
C. of government
D. and political
下列哪项评定检查不适用于脊髓灰质炎患者
A. 心理测试
B. 肌电图
C. X线检查
D. 步态分析
E. 智力评估
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