單項選擇題By plotting the analysis messages on weather charts，we are able to（）.

A.prevent any possible accident at sea
B.prepare a reasonable forecast of the wind and weather
C.help the mariner to fix a accurate ship's position
D.aid the salvage of a ship in peril


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2.單項選擇題（）the whole the stowage is all right.

A.In
B.On
C.From
D.To

3.單項選擇題（）using the derrick at once，the gooseneck is bent.

A.Continue
B.Start
C.Commence
D.Stop

4.單項選擇題Captain said that very clearly so that nobody was in any（）about what was meant.

A.doubt
B.question
C.wonder
D.consideration

6.單項選擇題I read you（）single strength 5.

A.in
B.on
C.with
D.by

7.單項選擇題（）will reduce the visibility.

A.dust
B.sea water
C.land sand
D.wind

8.單項選擇題Ice situation expected to（）in your position.

A.deteriorate
B.bad
C.heavy
D.serous

9.單項選擇題AVAST means（）.

A.let go
B.pull
C.slack off
D.stop