The MARPOL Convention is the main international convention（）<br>A:about marine pollution prevention<br>B:covering marine protection of life<br>C:about marine<br>D:about ship and port security

The MARPOL Convention is the main international convention（）
A:about marine pollution prevention
B:covering marine protection of life
C:about marine
D:about ship and port security

出自：海船船员证

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