Upon the survey it is found the deck control valve of the fore peak tank could not be().
A.tighted formally
B.shut tightly
C.combined properly
D.closed suitably
参考答案:B
Upon the survey it is found the deck control valve of the fore peak tank could not be().
A.tighted formally
B.shut tightly
C.combined properly
D.closed suitably
参考答案:B