单项选择题
Upon arrival at the discharging port, the inert gas system is（）.
A.turned on
B.turning on
C.turn on
D.to turn on
点击查看答案&解析
相关考题
-
单项选择题
Vessels are required（）Singapore Port Service when passing the points indicated.
A.communicating with
B.to communicate with
C.be communicated
D.will communicate -
单项选择题
Vessels are warned（）in this area.
A.to not anchor
B.to anchor not
C.not to anchor
D.not anchor to -
单项选择题
Vessels carrying（）must not willfully wash decks or holds.
A.general cargo
B.steel products
C.harmful cargo
D.machinery
