A.of
B.to
C.on
D.with
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A.to
B.on
C.of
D.for
A.urgency or an emergency
B.the vessel's national identity signal
C.a group from the general signal code
D.a group from the medical signal code
A.Hard rubber
B.Canvas
C.Leather
D.Sponge rubber
A.at the lowest point
B.near the batteries
C.at the highest point
D.only when charging is in progress
A.take part
B.watch
C.go to their quarters
D.stay out of the way and do what they want
最新試題
Good anchorage may be obtained anywhere in this water area，the bottom being generally mud and sand，vessel may have（）.
Geographic range is the maximum distance at which a light may be seen under（）.
Which spoken emergency signal would you use to call a boat to come assist a man overboard?（）
Which method of adjusting mooring lines is MOST useful for leaving a boat free to rise and fall with the tide?（）
Which tool is used to open the strands of fiber lines when making an eye splice?（）
Which method is used to detect rot in manila lines?（）
To safely anchor a vessel there must be sufficient scope in the anchor cable. Scope is the ratio of（）.
In the International Code of signals，a group of three letters indicates（）.
Which statement is TRUE about placing the eyes of two mooring lines on the same bollard?（）
Should the vessel have no deratisation certificate at the time of her delivery，she（）be held to be unseaworthy.