A.always
B.never
C.sonetimes
D.sometime
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A.inside of the shell
B.outside of the shell
C.top of the center vertical keel
D.top of the garboard stake
A.bollards
B.ballasts
C.bands
D.benefits
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
最新試題
Manoeuvring information can not be obtained from（）.
When the wave period and the apparent rolling period are the same（）.
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 an operation mode of AIS?（）
Bales close to the deckhead should be covered to prevent（）.
What is it called when it is possible to ignite the vapour above the oil?（）
（）is on the panel of radar.
（）is halfway between the forward and after perpendiculars and is reference point for vessel construction.
The circulation around a low pressure center in the Northern Hemisphere is（）.
The company should establish and maintain procedures to control all documents and date which are relevant to（）.