A.Has there been
B.Have there been
C.Has there
D.Have there
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A.From
B.By
C.on
D.With
A.Have
B.Has
C.Is there
D.Are there
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
最新試題
It is not necessary to declare（）in the Health List.
An obstruction on a helodeck is any object that might present a hazard to the（）.
A helmsman receives the command “Right 15 degrees rudder.”The helmsman’s IMMEDIATE reply should be（）.
A heavy steel curved arch constructed athwartships and above the after deck on a towing vessel is sometimes called a（）.
A head-on situation at night is one in which you see dead ahead a vessel showing（）.
A green buoy has a yellow triangle on it. This is a(n)（）.
All ships（）suspected infectious disease on board should radio information to Port Health Officer.
A large vessel is equipped with a controllable pitch propeller. Which statement is TRUE?（）
A large basin cut into the shore，closed off by a caisson，and used for dry docking of ships is known as a（）.
A fire pump may be used for other purposes if（）.