A.the second engineer had got into the engine room
B.the second engineer got into the engine room
C.has the second engineer got into the engine room
D.did the second engineer get into the engine room
第1题
A.Stationary
B.Full floating
C.Semi-floating
D.Free rolling
第2题
A.stop engine
B.finished with engine
C.dead slow ahead
D.dead slow astern
第3题
A.gums, acids, and varnishes
B.removed by cellulose type filters
C.neutralized by oil additives
D.not removed by absorbent filters
第4题
A.hoisting/luffing/slewing
B.lifting/raising/lowering
C.rotating/raising/handling
D.hosting/lowering/moving
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