A.bollards
B.ballasts
C.bands
D.benefits
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A.a line is weakened by constantly pulling on it in one direction
B.normal wear on the line is thus distributed to different areas
C.it prevents the line from kinking or unlaying
D.it prevents permanent misalignment of the line's internal strands
A.managanese bronze
B.cast iron
C.mild steel
D.improved plow steel
A.take
B.think
C.hand
D.get
A.with
B.by
C.on
D.in
A.in,at
B.at,on
C.on,by
D.to,before
最新試題
Which of the following is not an operation mode of AIS?（）
（）is the act of allocating space to containers on board of a container ship in the order of the discharge ports.
According to the relevant regulation, lifeboat should be powered by（）.
The company should establish and maintain procedures to control all documents and date which are relevant to（）.
How long are you prohibited to consume alcohol prior to serving as a member of a watch?（）
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（）.
The dew point temperature is（）.
Despite the rising importance and great convenience of the gyrocompass,the magnetic compass still retain its importance because of its（）.
Which of the following is not a form of precipitation?（）
In the Northern hemisphere northerly winds may cause temperature（）.