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【判断题】

《岗位作业指导书CRH动车组列车员》对讲机佩戴标准:对讲机夹在后腰位置上,必须佩戴耳麦。

A.
正确
B.
错误
题目标签:标准机夹对讲机
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参考答案:
参考解析:
.
刷刷题刷刷变学霸
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【单选题】According to a survey, which was based on the responses of over 188,000 students, today’s traditional-age college freshmen are "more materialistic and less altruistic (利他主义的) " than at any time in the...

A.
have never attached so much importance to moral sense
B.
have never been so financially well off as today
C.
have never been so materialistic as today
D.
have never been so interested in the arts

【单选题】According to a survey, which was based on the responses of over 188,000 students, today"s traditional-age college freshmen are "more materialistic and less altruistic (利他主义的 )" than at any time in the...

A.
have never been so materialistic as today
B.
have never been so interested in the arts
C.
have never been so financially well off as today
D.
have never attached so much importance to moral sense

【多选题】门机夹轮器不松轨的故障原因是()。

A.
泵站转换开关选在手动位置上
B.
夹轮器驱动活塞螺母松动
C.
溢流阀失常
D.
压力继电器间隙调整过小