单项选择题
A.reducing the erosion of the cargo tanks B.increasing the total quantity of oil to carry C.reducing the quantity of water contained in oil D.reducing cargo discharged time
Where is the cooling water from the compensating tank i...
单项选择题Where is the cooling water from the compensating tank in the cooling water system of main engine lead to?（）
A.discharge side of the centrifugal pump B.suction side of the centrifugal pump C.the lowest point of the cooling water system D.inlet of the main engine
From viewpoint of practice, it is sometimes important t...
单项选择题From viewpoint of practice, it is sometimes important to detect abnormal happenings in the running gear by（）
A.a keen sense of hearing B.rich theory C.communicating ability with others D.repetition work
If two fuel service tanks are installed, the empty tank...
单项选择题If two fuel service tanks are installed, the empty tank should be pumped up directly it is emptyWhat is the meaning of “directly” in the sentence above?（）
A.at once B.as soon as C.quickly D.straight
