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單項(xiàng)選擇題

The certificate of nationality （） serves as evidence of the nationality of the ship （） shows the port of registry.

A.neither，nor
B.not only，but also
C.not，but
D.not only， and but

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單項(xiàng)選擇題

The certificate shall have effect （） all Chinese ports.

A.to
B.for
C.in
D.on

單項(xiàng)選擇題

The certificate will remain in force （）July lst,2008.

A.in
B.on
C.till
D.to

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