单项选择题
A.discharge B.recircle C.load D.take in
These weights are（）the ship’s discharging facilities．A....
单项选择题These weights are（）the ship’s discharging facilities．
A.out B.beyond C.from D.off
The valve on the discharge side of a cargo pump on a ta...
单项选择题The valve on the discharge side of a cargo pump on a tanker will usually be a（）.
A.butterfly valve B.spectacle valve C.check valve D.globe valve
The tricing pendants should be released（）.A.before the ...
单项选择题The tricing pendants should be released（）.
A.before the gripes are removed B.before loading the passengers C.after loading the passengers D.after the boat is afloat
