A.strong breeze
B.near gale
C.gale
D.strong gale
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A.wind Speed
B.Air Force
C.wind Velocity
D.Beaufort Force
A.check it with a barometer on another vessel
B.take readings from several barometers and average them
C.check it with the barometer at the ship chandlery
D.check it against radio or National Weather Service reports of the immediate vicinity
A.a certain area
B.all ocean areas
C.some areas
D.important areas
A.Upwind
B.Downwind
C.Crosswind
D.Downcurrent
A.meets with
B.has met with
C.met with
D.meeted with
最新試題
Mechanical lifting of air by the upslope slant of the terrain is called（）.
When observing a rapid rise in barometric pressure，you may expect（）.
If the center of low pressure is due west of you in the Northern Hemisphere，which wind direction should you expect（）.
Weather forecast messages are usually（）.
It is predicted that heavy rains are（）to flood the harbor and its vicinity in a few days.
Which general weather conditions should you expect to find in a low pressure system（）.
Which of the following statements concerning frontal movements is TRUE（）.
Gale warnings are usually issued when winds of（）8-9 are expected．
While on watch，you notice that the air temperature is dropping and is approaching the dew point.Which type of weather should be forecasted（）.
Weather observations provided by each weather station include all of the following except（）.