"In maritime labour convention ,hours of work means time during which seafarers are required _____ the ship
A.any work on
B.to keep watch for
C.to maintain
D.to do work on account of
正确答案是D
"In maritime labour convention ,hours of work means time during which seafarers are required _____ the ship
A.any work on
B.to keep watch for
C.to maintain
D.to do work on account of
正确答案是D