单项选择题
Vessels must be（）valid certificate of nationality or certificated of registry or license.
A.acquiring
B.with possession of
C.required for
D.in possession of
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相关考题
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单项选择题
Vessels must not “exceed” a speed of 8 knots in this area.（）.
A.sail at
B.except
C.proceed at
D.steam over -
单项选择题
We can hardly accept any marks（）or damage（）the cargo.
A.mixed/to
B.mixing/to
C.being mixed/for
D.being mixed/of -
单项选择题
We will（）special attention to the dangerous cargo.
A.put
B.make
C.take
D.pay
