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航海英語(yǔ)單項(xiàng)選擇題每日一練(2020.04.25)

單項(xiàng)選擇題
A “figure eight” knot is used to（）.
A.be a stopper
B.shorten a line
C.join lines of equal size
D.keep a line from passing through a sheave
單項(xiàng)選擇題
Mariners proceeding across the main routes are recommended to do so at（）.
A.as wide an angle as practicable
B.as wide an angle so practicable
C.like wide an angle as practicable
D.like wide as angle so practicable
單項(xiàng)選擇題
The MOST important element in administering CPR is（）.
A.having the proper equipment for the process
B.starting the treatment quickly
C.administering of oxygen
D.treating for traumatic shock
單項(xiàng)選擇題
Which general statement concerning radar is FALSE?（）.
A.Raising the antenna height increases the radar range
B.The ability of radar to detect objects is unaffected by weather conditions
C.Radar bearings are less accurate than radar ranges
D.Radar should be checked regularly during clear weather to ensure that it is operating properly
單項(xiàng)選擇題
The perforated，elevated bottom of the chain locker，which prevents the chains from touching the main locker bottom and allows seepage water to flow to the drains，is called a（）.
A.cradle
B.draft
C.harping
D.manger