互换配合的零件,为了达到相应的配合精度,有()装配方法。
A.安全互换装配法
B.选择装配法
C.调整装配法
D.修配装配法
参考答案:A, B, C, D
根据所给汉语或英语首字母写出文中所缺英语单词的正确形式。
I have a good friend. His name’s David.There are three members in his family. His 小题1:.__________ (父亲) is a writer. His 小题2:.p__________number is 853-245. His mother an 小题3:.E__________ teacher. She works in a middle school. David 小题4:.__________ (喜欢) sports. His favorite sport is basketball. He thinks it is very 小题5:.__________ (有趣). He often play it with his 小题6:.f__________ on weekends.
区别有无权威政府的根本标志是()。
A.政府是否廉洁
B.政府的管理和服务是否被人们自觉的认可和接受
C.政府有没有依法行使自己的权力
D.政府的决策是否科学