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单选题
Which of the actions listed should be taken by the engineer on watch when the general alarm is sounded continuously for 10 seconds?（）
A
Engine room ventilation should be started
B
Main engines should be secured
C
The fire pump should be started
D
The fixed CO2 system should be activated
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单选题Which of the actions listed should be taken by the engineer on watch when the general alarm is sounded continuously for 10 seconds?（）A
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