Coast Guard regulations require that all of the following emergencies be covered at the periodic drills on a fishing vessel EXCEPT（）.
1、It is required that ships proceeding a
It is required that ships proceeding at sea should keep continuous watch on（）.AVHF channels 16 and 13BAppropriate DSC distress and safety frequenciesCINMARSAT TDM message channelDVHF channel 70 and channel 8
2、Regulations require that cargo tanks c
Regulations require that cargo tanks carrying grades D or E liquids on tank barges be vented with（）.Agooseneck vents and flame screensBpressure-vacuum relief valvesCbranch vent lines and a vent headerDforced draft blower
3、A Coast Guard radiotelephone message a
A Coast Guard radiotelephone message about an aid to navigation that is off station is preceded by the word（）.APAN-PANBMAYDAYCSOSDSECURITY
4、Lifesaving regulations require that a
Lifesaving regulations require that a fire drill include（）.Astarting the fire pumpsBchecking the operation of watertight doorsCchecking arrangements for abandon shipDAll of the above
5、Regulations require that pumprooms on
Regulations require that pumprooms on tank vessels carrying grade C liquid cargo with machinery spaces below the freeboard deck be ventilated wi...
6、SOLAS regulations require that the ine
SOLAS regulations require that the inert gas system shall be capable of delivering inert gas with an oxygen content of not more than what percentage?（）A5%B8%C6%D3%