A.Have
B.Has
C.Is there
D.Are there
您可能感興趣的試卷
你可能感興趣的試題
A.Have
B.Has
C.Has there been
D.Are there
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
最新試題
A helmsman receives the command “Right 15 degrees rudder.”The helmsman’s IMMEDIATE reply should be（）.
A head-on situation at night is one in which you see dead ahead a vessel showing（）.
Between 1830 hrs and 1850 hrs this day，strong gusty winds（）by my vessel，in consequence of which the vessel’s four mooring lines were broken.
A fishing vessel casualty must be reported to the Coast Guard if it involves（）.
It is not necessary to declare（）in the Health List.
A jack-up drilling rig being towed must（）.
A fire pump may be used for other purposes if（）.
Permanent magnetism is caused by（）.
A jack-up drilling unit elevated on the Outer Continental Shelf must have a fog horn that will sound（）.
A heavy，thick-walled tube，usually steel，used between the drill pipe and the bit in the drill stem to weight the bit in order to improve its performance is called a（）.