When should the emergency position-indicating radio beacon be activated after abandoning an OSV?（）<br>A:Immediately<br>B:After one hour<br>C:Only when another vessel is in sight<br>D:Only after sunset

When should the emergency position-indicating radio beacon be activated after abandoning an OSV?（）
A:Immediately
B:After one hour
C:Only when another vessel is in sight
D:Only after sunset

出自：海船船员证

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