The SOLAS Convention in its successive forms is generally regarded as the most important of all international treaties concerning the （） of merchant ships.<br>A:pollution<br>B:economization<br>C:safety<br>D:efficiency

The SOLAS Convention in its successive forms is generally regarded as the most important of all international treaties concerning the （） of merchant ships.
A:pollution
B:economization
C:safety
D:efficiency

出自：海船船员证

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