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单选题
The vessel is out of harbor and in “Full Ahead”We are going to run fuel oil instead of （） and open the fuel oil heater steam valve.
A
heavy oil
B
lube oil
C
fuel oil
D
diesel
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单选题A large vessel is equipped with a controllable pitch propeller. Which statement is TRUE?（）.A
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单选题When the vessel on the full speed ahead, if full astern immediately （） the main engine start astern and fuel injection.A
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fuel oil instead diesel oil
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单选题When the ships is going to enter into the harbor,（）.A
change from diesel oil to heavy fuel oil for mail engineB
pump out bilge waterC
change sea chest form lower level one to high level oneD
test emergency generator
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