[单选题] The main purpose of port State control is not to___________.

1、[单选题]The abbreviation "GM" is used to represent the _____.

• A、height of the metacenter
• B、 fighting arm
• C、 righting moment
• D、 metacentric height

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2、[单选题]According to Annex IV of comminuted and disinfected sewage using an approved system can be discharged when the ship is more than away from the nearest land.

• A、3 n mile
• B、 5 n mile
• C、 12 n mile
• D、 25 n mile

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3、[单选题]The Company should ensure that the master is fully _____ with the Companys SMS.

• A、familiar
• B、 understand
• C、 conversation
• D、 confused

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4、[单选题]The main purpose of port State control is not to___________.

• A、prevent an unsafe ship proceeding to sea
• B、 prevent a ship threatening the marine environment
• C、 fine the ships
• D、 confirm a safe sailing

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5、[单选题]The latest annex of MARPOL 73/78 is about .

• A、the Prevention of Pollution by Oil
• B、 the Prevention of Pollution by Noxious Liquid Substances in Bulk
• C、 Prevention of Pollution by Garbage from Ships
• D、 Prevention of Air Pollution from Ships

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