close up
switch on
open
switch off
第1题：
A、to lift
B、lift
C、lifting
D、lifted
第2题：
A mobile offshore drilling unit under tow is approaching a fog bank. When should fog signals be started?
A.When the towing vessel enters the fog
B.When the drilling rig enters the fog
C.When the towing vessel can no longer be seen from the rig
D.Immediately
第3题：
A、glowing
B、gleaming
第4题：
雾号（）
第5题：
（）状态表示票联是已登机状态.
第6题：
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
第7题：
The fog is lifted，so ______ the radar．
A.close
B.open
C.switch off
D.switch on
第8题：
Dense fog comes with bad visibility, fog signal bell must be kept ________at regulation intervals
A.to go
B.going
C.goes
D.go
第9题：
什么是“照相灰雾（Photo graphic fog）”和“曝光灰雾（exposure fog）”？
第10题：
NO DANGEROUS TARGETS ON RADAR.的中文意思是：在雷达上未见危险物标。