单项选择题X 纠错
A.available minimum requirements
B.available maximum requirements
C.mandatory minimum requirements
D.mandatory maximum requirements
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单项选择题
A.the bridge watch-keeper
B.the captain
C.the chief engineer
D.the engine room staff
单项选择题
A.the engineer officer in charge of watch
B.the deck officer in charge of watch
C.the master
D.the chief mate
单项选择题
A.3 years after making the first entry
B.2 years after the last entry
C.3 months after last entry
D.3 years after the last entry
单项选择题
A.port state control
B.flag state control
C.fire and boat drill
D.Safety inspection
单项选择题
A.additional
B.permanent
C.temporary
D.long
单项选择题
A.detergent
B.de-oiling
C.defrosting
D.demulsifying
单项选择题
A.defrosting
B.de-oiling
C.demulsifying
D.dehumidifying
单项选择题
A.dispersant;detergent
B.detergent;dispersant
C.dispersant;dispersant
D.detergent;detergent
单项选择题
A.oxidation resistance
B.carbon-forming tendency
C.demulsibility
D.acidity
单项选择题
A.lower than
B.higher than
C.as same as
D.better than