A.If
B.Shall
C.Should
D.Whether
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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
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Permanent magnetism is found in（）.
It is not necessary to declare（）in the Health List.
A safe fuel system must（）.
An obstruction on a helodeck is any object that might present a hazard to the（）.
How could lashing gear used aboard Ro-Ro vessels be stowed when not in use? （）
It is not necessary to declare（）in MARITIME HEALTH DECLARATION.
An inert gas system installed on a tanker is designed to（）.
A heavy steel curved arch constructed athwartships and above the after deck on a towing vessel is sometimes called a（）.
An inert gas system on a tanker should be used to（）.
Cargo transfer operations on a tank vessel need NOT be stopped when（）.