A hydrostatic release mechanism for a liferaft().
A. must be wet before it will release
B. should be kept in a watertight cover except in an emergency
C. will inflate the raft in its cradle if operated manually
D. must be submerged to a certain depth to release automatically
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由于节流泵站的工艺流程与过去有所不同,其管理的还坏也就不再影响排水系统
A. 正确
B. 错误
项目的计划开、竣工日期和实际开、竣工日期是由谁填写的?在什么时候填写?
顺线路行走时,严禁在()、()行走,不准脚踏轨面、道岔连接杆、尖轨等。
收单机构受理的ATM交易,差错调账笔数占ATM交易总笔数的月平均比例应低于0.011%
A. 正确
B. 错误