A.is it
B.isn't it
C.is he
D.isn't he
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A.pilot
B.speaker
C.standby wheel
D.automatic pilot
A.large cumulonimbus (thunderclouds) building up
B.high cirrus clouds gradually changing to cirrostratus and then to altostratus
C.fog caused by the warm air passing over the cooler water
D.low dark clouds accompanied by intermittent rain
A.very quick flashing
B.flashing
C.fixed
D.occulting
A.pressure changes in the air mass
B.movement of the air mass
C.the heterogeneous nature of the air mass
D.upper level atmospheric changes
A.which
B.where
C.what
D.who
最新試題
The step of a pilot ladder which prevents the ladder from twisting is the （）.
Is the pilot boat （） station
The first indications a mariner will have of the approach of a warm front will be （）.
Keep （） to that point,said the pilot．
Which vessel may show three lights in a vertical line，the top and bottom being red and the middle being white? （）
Pilot ladder is （） on port side．
It’s all right to rig the pilot ladder on lee side （）.
The transfer procedures for oil products are required to be posted （）.
Monsoons are characterized by （）.
When a tug is pulling on a hawser at right angles to the ship，and the pilot wants to come ahead or astern on the ship’s engine，care must be taken that the pilot（）.