A.brake
B.devil's claw
C.pawls
D.All of the above
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A.HAS
B.the person in charge
C.a qualified inspector
D.the crane operator
A.benzene
B.tar
C.middle oil
D.toluene
A.requested
B.allowed
C.approved
D.inquired
A.corrosive
B.flammable gas
C.flammable liquid
D.nonflammable gas
A.in waerhouses
B.on deck
C.ashore
D.in the tallyroom
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（）is where the crew eat their meals.
In the Northern hemisphere northerly winds may cause temperature（）.
Manoeuvring information can not be obtained from（）.
According to the relevant regulation, lifeboat should be powered by（）.
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?（）
Where would you find information about the time of high tide at a specific location on a particular day of the year?（）
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 helm command PORT TWENTY means（）.
The circulation around a low pressure center in the Northern Hemisphere is（）.