A.change from smooth curves within the air mass to sharp bends at the front
B.change from sharp bends within the air mass to smooth curves at the front
C.pass smoothly across the front with no change
D.become closer together at the front and pass through in straight lines
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A.Admiralty Chart
B.Admiralty Light list
C.Admiralty List of Radio Signals
D.Admiralty Notices to Mariners
A.at high vessel speeds
B.at low vessel speeds
C.in shallow water
D.in deep water
A.Vapor pressure
B.Dew point
C.Barometric pressure
D.Absolute humidity
A.spring
B.later winter
C.autumn
D.end of summer
A.STCW
B.MARPOL
C.SOLAS
D.ISM
最新試題
Which of the following shall not the officers in charge of the navigational watch do?（）
Despite the rising importance and great convenience of the gyrocompass,the magnetic compass still retain its importance because of its（）.
When the wave period and the apparent rolling period are the same（）.
In the Northern hemisphere northerly winds may cause temperature（）.
The force resulting from the earth’s rotation that causes winds to deflect to the right in the Northern Hemisphere and to the left in the Southern Hemisphere is called（）.
Which of the following is not an operation mode of AIS?（）
Berthing means bringing a vessel to her berth until（）.
The loading of the ship must be done in accordance with（）.
How long are you prohibited to consume alcohol prior to serving as a member of a watch?（）
The dew point temperature is（）.