A.to／for B.for／to C.by／through D.through／for
A.breakdown B.breaked down C.broken down D.broke down
A.shall never be stowed B.may be stowed C.can be stowed D.should be stowed
A.horizontally banded buoys B.vertically striped buoys C.yellow buoys D.spherical buoys
A.avoid B.avail C.amend D.awake
A.Daily B.Daily，at sea only C.After encountering rough weather D.After loading and prior to arrival in port only
A.ships arrive at random B.cargo-handling time varies greatly C.ships have to queue to get onto berths D.ships do not have to wait to get onto berths
A.stow B.stowing C.stowed D.be stowed
A.only when the cargo is within its rail B.after the cargo is checked by tallymen C.as soon as the cargo loading or unloading begins D.during the time when loading or unloading is going on
A.advised B.to be advised C.be advised D.are advised
