单选题The abbreviation C0W in tanker operations stands for（）.A crude oil washingB coming off wreckC crew on watchD cold of wind

雷达

A.radio

B.radar

C.reader

D.tanker

Cargo transfer operations on a tank vessel need NOT be stopped when ______.

A.a tug comes alongside while the tanker is loading grade D and E cargoes

B.a large，fresh oil spill is discovered immediately adjacent to the side of the tanker

C.there is an electrical storm in the vicinity

D.there is a fire on the dock or on a nearby vessel

A.there stands a library

B.stands a library

C.a library stands

D.does a library stand

Unless such oil tanker carries crude oil which is not suitable for crude oil washing，the oil tanker shall ______ the system in accordance with the requirements of that Regulation．

A.operate

B.check

C.install

D.overhaul

Brides usually wear white wedding dresses，because white______ purity．

A．stands for

B．stands out

C．stands up

D．stands by

Who may serve as the person in charge of loading and discharge operations aboard a tanker ________．

A.A licensed officer who holds a tankerman-PIC endorsement

B.The pumpman who has a tankerman assistant endorsement

C.The Master

D.The bosun

The abbreviation RYC in a marine cable generally stands for ______.

A.refeering to your crew

B.reference for your captain

C.return to your cabin

D.received your cable