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
最新試題
Which of the following shall not the officers in charge of the navigational watch do?（）
The ISM code is part of（）.
Which of the following is not an operation mode of AIS?（）
（）is where the crew eat their meals.
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（）.