A.cleanly/during
B.clear/meawhile
C.clean/between
D.clean/prior to
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A.boarding and operating procedures
B.maintenance schedule
C.navigational systems
D.fuel consumption rates
A.in spite of
B.irrespective
C.in respect
D.in matter of
A.a mattress
B.spilled liquids such as oil or paint
C.high voltage electrical gear
D.a trash can
A.greater range
B.effective on all types of fires
C.cleanliness
D.All of the above
A.lack of toxicity
B.the multipurpose extinguishing ability
C.bum-back protection
D.cooling ability
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The dew point temperature is（）.
It is dangerous for vessels without the operational radar（）the estuary.
Before any loading takes place any signs of the previous cargo should do（）.
The ISM code is part of（）.
When steering by autopilot,how often should the steering be checked?（）
Berthing means bringing a vessel to her berth until（）.
Despite the rising importance and great convenience of the gyrocompass,the magnetic compass still retain its importance because of its（）.
What is a CORRECT reply to a pilot’s request, How’s your heading?（）
A tide is called diurnal when（）.
In the Northern hemisphere northerly winds may cause temperature（）.