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OAP IF ANY TO BE CHTRS ACCT BUT OWNERS CONTRIBUTION USD 0.3/MT. What doesOAP stand for?（）

A.Old Age Pension
B.Overage Additional Premium
C.Organization of Arab Petroleum countries
D.Optimum amplitude and phase modulation

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No damage of any kind（）aids to navigation or navigation facilities.

A.should be done to
B.should not be done to
C.must be done with
D.must not be done with

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My vessel maneuvering（）difficulty．Please keep well clear（）me.

A.with，of
B.in，of
C.at，apart
D.with，from

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