單項(xiàng)選擇題

（）should ensure that adequate measures are taken to prevent alcohol and drugs from impairing the ability of watchkeeping personnel.

A.The quarantine officers
B.Administrations
C.The immigration officers
D.The customs officers

你可能感興趣的試題

You are about to cross a narrow channel when you see an approaching vessel that can only be navigated safely within the channel.You should（）.

A.cross the channel as you are the stand-on vessel
B.cross only if the vessel in the channel is approaching on your port side
C.not cross the channel if you might impede the other vessel
D.sound the danger signal

單項(xiàng)選擇題

Between April and November, squalls（）as Sumateras（）in Malacca Strait in the late afternoon or overnight and（）E to affect the W coast of Malaysia and Singapore Island.

A.known, developing, move
B.known, developed, move
C.known, develop, moving
D.known, develop, move