At the earliest indication of fire aboard your vessel, you must FIRST（）.<br>A:locate the fire<br>B:determine which type of fire is burning<br>C:sound the alarm<br>D:fight the fire

At the earliest indication of fire aboard your vessel, you must FIRST（）.
A:locate the fire
B:determine which type of fire is burning
C:sound the alarm
D:fight the fire

出自：海船船员证

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