问题
多项选择题
在普通数控机床上加工零件，应尽量选用（）装夹工件。
A.成组夹具
B.随行夹具
C.组合夹具
D.通用夹具
E.专用夹具
答案
参考答案：C, D
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在普通数控机床上加工零件，应尽量选用（）装夹工件。
A.成组夹具
B.随行夹具
C.组合夹具
D.通用夹具
E.专用夹具
参考答案：C, D
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morning. It was half past seven this morning when he 1 at his watch. He got out of bed 2 . Then he washed his face and brushed (刷) his 3 at coce. Then he put on his clothes and left his house in a great hurry (匆忙). He was late 4 . He had to run all the 5 to the bus stop and got there just in time for the bus. He got to his office and 6 to work. Mr.Johson never ate 7 in the morning, so he was 8 all the morning. When his friends asked him, "Why don't get up early to have 9 in the morning?" He always said to them, "It is nice to have breakfast. But it is 10 to lie (躺) in bed!" |