A、portable ventilation system
B、flame safety lamp
C、self-contained breathing apparatus
D、gas mask
更多“For use as protection from gas leaking from a refrigeration unit，each ship must be equipped with a（）.”相关的问题
A、A. use BGP as the CE-PE routing protocol B、B. use OSPF as the CE-PE routing protocol C、C. use EIGRP as the CE-PE routing protocol D、D. use the SP to redistribute routes as external routes for OSPF and EIGRP E、E. use route redistribution at each location to ensure external routes are imported into the IGP
A、It can be used to allow the access privilege settings for users but not roles. B、It can be used to allow the access privilege settings for users as well as roles. C、It can be used to control the time interval for which the access privilege is available to a user. D、It can be used to selectively restrict the access for each user in a database to different host computers. E、It can be used to selectively restrict a user's access to different applications in a specific host computer.
A、A commonly used abbreviation such as NYC is used B、The name is spelled out C、The geographical coordinates are used D、The radio station call sign for the nearest marine radio station is used
A、A commonly used abbreviation such as NYC is used B、The name is spelled out C、The geographical coordinates are used D、The radio station call sign for the nearest marine radio station is used
A、act as a shock absorber B、maintain the stored oil under pressure C、act as a base or foundation for the power unit D、eliminate pressure surges in the system
A、A.oxygen and explosion meter when it is used for detection of flare gases B、B.self-contained breathing apparatus，when used as protection from gas leaking from a refrigeration unit C、C.boots and gloves that are made of rubber or electrically non-conductive material，if used when repairing electrical equipment D、D.lifeline，if used by personnel entering a compartment which might be deficient of oxygen
A、A session key value is exchanged across the network. B、A session key never passes across the network. C、A session key is used as the key for asymmetric data encryption. D、A session key is used as the key for symmetric data encryption.
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