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【多选题】
按主要功能进行分析,机床夹具的基本组成部分有三个,分别是( )。这也是夹具设计的主要内容。A.
定位元件
B.
夹紧装置
C.
夹具体
D.
对导向装置
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举一反三
【单选题】The difference between measured and desired values is called
A.
make-up
B.
desired value
C.
deviation
D.
set value
【简答题】The objective in inventory strategy is to achieve desired customer service with the maximum inventory commitment．（ ）
【判断题】The objective in inventory strategy is to achieve desired customer service with the minimum inventory commitment. （ ）
A.
正确
B.
错误
【单选题】When we have difficulty ______ desired objects or reaching desired goals we experience negative emotions such as grief and anger.
A.
at obtaining
B.
in obtaining
C.
on obtaining
D.
with obtaining
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