The main purpose of port State control is not to（）<br>A:prevent an unsafe ship proceeding to sea<br>B:prevent a ship threatening the marine environment<br>C:fine the ships<br>D:confirm a safe sailing

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

出自：海船船员证

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