A.less moisture than cold air
B.more moisture than cold air
C.the same amount of moisture as cold air
D.moisture independent of air temperature
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A.tank capacities
B.stability in the event of damage
C.towing speed
D.anchor holding ratio
A.no earlier than 24 hours prior to loading
B.no later than 24 hours prior to loading
C.anytime prior to loading
D.weekly
A.cirrus
B.cirrocumulus
C.altostratus
D.cumulonimbus
A.moor a damaged barge to the bank and leave
B.remove and deliver a loaded barge from a multiple tow
C.remove a barge while locking through
D.tow an empty barge astern
A.to right the raft if it capsizes
B.to carry the raft around on deck
C.for crewmen to hang on to
D.to hang the raft for drying
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How does a coast radio station communicating by HF radio normally identify itself?（）
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