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【简答题】
基本偏差是确定公差带相对于零线位置的那个极限偏差,一般为靠近零线的那个极限偏差。国家标准规定了、轴各 种基本偏差代号,其中代号A——H在零线 (上、下)方。 (上、下)极限偏差为基本偏差。
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【单选题】为了使螺栓均匀受力减少零件变形并使零件间隙配合紧密,拆卸螺栓时应该( )
A.
按对角的方向从里向外拆
B.
按对角的方向从外向里拆
C.
从里向外随意拆装
D.
从外向里随意拆
【单选题】How long has the woman being studying in state college?
A.
Since the fall.
B.
Since the summer.
C.
For a year and a half.
D.
For three years.
【单选题】How has the number of working woman with college degrees in the united States changed
A.
It has increased 57 percent since 2011.
B.
It has increased 200 percent since 1970.
C.
It has reached 65 million in 1964.
D.
It has increased 46 million since 1964.
【简答题】情境2_项目1 用户帐号管理(2008).doc 情境2_项目1 组账号管理(2008).doc 实验报告模板.doc 2008账号管理.mp4
【单选题】How much work has the woman finished?
A.
Only a half
B.
Most of it.
C.
A little of it.
【单选题】What does the woman want to know?
A.
Whether the man has got some cold medicine.
B.
How effective is the hot line service.
C.
Whether the man has got suitable clothes.
D.
How long the man has been in this city.
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