题目内容

对地下防水结构进行渗漏调查时,施工单位必须提供什么资料()

A. 施工方案
B. 施工日志
C. 背水内表面结构展开图
D. 防水混凝土配合比

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加油站员工认真执行"加油操作十三步曲"及"唱收唱付"等基本服务技巧,可以让顾客感受服务的魅力,拉近与顾客之间的距离。

A. 正确
B. 错误

A seaman assaults the Second Mate and injures him with a beer bottle while the ship is at sea. The incident is logged in the Official Logbook. In subsequent suspension and revocation proceedings against the seaman,according to the regulations,().

A. the Second Mate and the Master must testify as to the facts of the assault
B. the case will be dismissed if the logbook entries are improperly made
C. the logbook entry is prima facie evidence of the facts if it complies with the law
D. the logbook is inadmissible if the logbook entries do not conform to the law

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试述安全阀的作用是什么?

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