In the emergency alarm signals, if the alarm or whistle two long sounds followed by one short sound for 1 minute, it is the （） emergency.<br>A:fire fighting<br>B:leakage blocking<br>C:abandon ship<br>D:integration

In the emergency alarm signals, if the alarm or whistle two long sounds followed by one short sound for 1 minute, it is the （） emergency.
A:fire fighting
B:leakage blocking
C:abandon ship
D:integration

出自：海船船员证

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