Generally speeking,()should have a valid permit when he needs to enter the departure lounge.
A. a passenger
B. a crew member
C. an airport staff
D. a temporary visitor
When anchoring in unsheltered anchorage, chief engineer should consult with captain ____.
A. if the ship must be stand by
B. if take bunkering
C. if keep-watching as in voyage
D. if the ship must anchor two anchors
人身检查的定义是采用()的仪器和手工相结合的方式，对旅客人身进行安全检查。
A. 规定
B. 严密
C. 公开
D. 先进
金属探测门应调节至适当的()，但不能低于安全设置要求。
A. 灵敏度
B. 频率
C. 音量
D. 位置
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