单项选择题
An “on-load” release system on a survival craft means the cable can be released（）.
A.only when the load is taken off the cable
B.only when there is a load on the cable
C.only when activated by the controls at the lowering station
D.at any time
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相关考题
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单项选择题
An “atoll cloud” forming over an island due to heating of the land during the daytime would be which type? （）
A.Cirrus
B.Cumulus
C.Stratus
D.Nimbus -
单项选择题
An “ABC” dry chemical fire extinguisher would be LEAST effective against a fire in（）.
A.a mattress
B.spilled liquids such as oil or paint
C.high voltage electrical gear
D.a trash can -
单项选择题
AMVER is a system which provides（）.
A.satellite communications
B.navigational information
C.weather information
D.position reporting service
