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单选题
While you are working in a space，the fixed CO2 system is accidentally activated．You should（）.
A
Secure the applicators to preserve the charge in the cylinders
B
Continue with your work as there is nothing you can do to stop the flow of CO2
C
Retreat to fresh air and ventilate the compartment before returning
D
Make sure all doors and vents are secured
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更多 “单选题While you are working in a space，the fixed CO2 system is accidentally activated．You should（）.A Secure the applicators to preserve the charge in the cylindersB Continue with your work as there is nothing you can do to stop the flow of CO2C Retreat to fresh air and ventilate the compartment before returningD Make sure all doors and vents are secured” 相关考题
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单选题While on watch in the engine room, you hear a continuous sounding of the general alarmWhich of the following actions should you take FIRST?（）A
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Open the guardian valve and standby to maneuverD
Open the master control valves on the fixed CO2 system
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