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【单选题】
According to the author, which of the following is TRUE about the situation in 20 or 25 years?
A.
There will be stricter laws and regulations on employment.
B.
There will be fewer people who take full-time jobs.
C.
There will be more older employees.
D.
There will be more people who work at home and far from each other.
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【判断题】用三爪自定心卡盘夹持工件车削时,每个卡爪所受的力是变化的,工件伸出卡爪越长,所需夹紧力也越大。
A.
正确
B.
错误
【判断题】用三爪自定心卡盘夹持工件 车削时,每个卡爪所受的力是变化的,工件伸出卡爪越长所需夹紧力也越大。
A.
正确
B.
错误
【单选题】液压装置执行机构在空载时的进、出口油压降反映了_的大小。
A.
液压泵机械摩擦损失
B.
执行机构机械摩擦损失
C.
管路流动损失
D.
执行机构工作负荷
【简答题】Name two ways you could pay a service charge.
【简答题】Name two ways you could pay a service charge.
【简答题】According to what you have learned from this course, name two ways to orient teachers in a training program, which way do you think is more effective and why?
【判断题】用三爪自定心卡盘夹持工件车削时,每个卡爪所受的力是变化的,工件伸出卡爪越长,所需夹紧力也越大。
A.
正确
B.
错误
【简答题】Do you know any other ways of promotion that are not in the list? Name two other ways.
【单选题】电解液液面高度低于规定标准值时,应补加( ) 。
A.
电解液
B.
稀硫酸
C.
蒸馏水
D.
自来水
【单选题】液压装置执行机构在空载时的进、出口油压降反映了______的大小。
A.
执行机构机械摩擦损失
B.
执行机构工作负荷
C.
液压泵机械摩擦损失
D.
管路流动损失
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