Fire extinguishers on inspected vessels are numbered by size I through V，with I being（）.<br>A:used for electrical fires only<br>B:the smallest<br>C:the most accessible<br>D:the most effective

Fire extinguishers on inspected vessels are numbered by size I through V，with I being（）.
A:used for electrical fires only
B:the smallest
C:the most accessible
D:the most effective

出自：海船船员证

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