题目内容

（）不能实现中断发动机动力传递。

A. 离合器
B. 差速器
C. 手制动器
D. 变速箱

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单向阀在液压系统中常起（）或（）作用。

In dense fog a vessel without operational radar may not be justified（）at all but should anchor if it is safe and practicable for her to do so.

A. to be underway
B. on under way condition
C. to stop engine
D. in being under way

Your system performs heavy transaction processing between 8：00 A.M. and 5：00 P.M. but runs batch processing and reports after that. You decide to create a separate resource plan to govern resource allocation for each time period. Which scheduler object will you use to switch automatically between the two resource plans？（）

A. Window
B. Program
C. Job_Class
D. Window grou

监理单位在实施监理过程中，发现存在生产安全事故隐患的并且情况严重的，不应当要求施工单位暂时停止施工，并及时向有关部门以及项目法人报告。

A. 正确
B. 错误