"As per STCW , any crew consume alcohol within ____shall not serving as a member of a watch
A.One hour
B.four hour
C.two hour
D.three hour
正确答案是B
"As per STCW , any crew consume alcohol within ____shall not serving as a member of a watch
A.One hour
B.four hour
C.two hour
D.three hour
正确答案是B