A.Have
B.Has
C.Has there been
D.Are there
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A.If
B.Shall
C.Should
D.Whether
A.two certificates have expired
B.two certificates will expire
C.one of the two certificates have expired
D.one of the two certificates will expire
A.has the full force of the regular Certificate of Inspection
B.expires six months after it is issued
C.must be exchanged for a regular Certificate of Inspection within 3 months
D.is retained in the custody of the Master
最新试题
Cargo transfer operations on a tank vessel need NOT be stopped when（）.
A hand held instrument used to measure distances between objects and the ship is a（）.
A flooded leg on a liftboat would adversely affect the vessel’s stability underway by（）.
A large basin cut into the shore，closed off by a caisson，and used for dry docking of ships is known as a（）.
A safe fuel system must（）.
After sending a message describing the symptoms of an ill crew member，you receive a message containing the code MRL. This means（）.
It is not necessary to declare（）in MARITIME HEALTH DECLARATION.
Permanent magnetism is found in（）.
A heavy steel curved arch constructed athwartships and above the after deck on a towing vessel is sometimes called a（）.
An obstruction on a helodeck is any object that might present a hazard to the（）.