A.a helment
B.safety cap
C.an ear plug
D.face mask
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A.Safety helmets
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B.Goggles and sepctacles
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B.Goggles and sepctacles
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D.Gloves and safety boots
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最新試題
According to the relevant regulation, lifeboat should be powered by（）.
Which of the following shall not the officers in charge of the navigational watch do?（）
Manoeuvring information can not be obtained from（）.
Where would you find information about the time of high tide at a specific location on a particular day of the year?（）
Which of the following is not an operation mode of AIS?（）
In the Northern hemisphere northerly winds may cause temperature（）.
Bales close to the deckhead should be covered to prevent（）.
ECDIS must be able to perform all of the following EXCEPT（）.
When steering by autopilot,how often should the steering be checked?（）
Shipboard Emergency Drills must be carried out at least（）on board cargo ship.