A、allow the exhaust fans to remove smoke
B、extinguish the fire by carbon monoxide smothering
C、prevent additional oxygen from reaching the fire
D、protect fire fighting personnel from smoke
更多“It is necessary to secure the forced ventilation to a compartment where there is a fire to（）.”相关的问题
A、it necessary B、it is necessary C、it necessary to D、necessary
A、When a vessel is alongside the wharf, it’s necessary for the ship to keep a 24-hour deck watch to guarantee the safety of the ship and the cargo. B、When a vessel is alongside the wharf, t’s necessary for the ship to keep a 24-hour gangway watch to guarantee the safety of the ship and the cargo. C、When a vessel is alongside the port, it’s necessary for the ship to keep a 24-hour deck watch to guarantee the safety of the ship and the cargo. D、When a vessel is alongside the port, it’s necessary for the ship to keep a 24-hour gangway watch to guarantee the safety of the ship and the cargo.
A、It is necessary to forward ARP requests to remote hosts. B、It is necessary when translated traffic belongs to the same subnet as the ingress interface. C、It is not automatic and you must configure it. D、It is enabled by default and you do not need to configure it.
A、is usual B、is not usual C、is necessary D、is not impossible
A、It is needed to identify a unique instance of an OSPF database. B、It is an optional parameter only necessary if multiple OSPF processes are used. C、It is locally significant. D、It is globally insignificant E、All routers in the same OSPF area must have the same process ID to exchange routing information.
A、a good dictionary should be bought B、buying a good dictionary is necessary C、you should buy a good dictionary D、it is necessary that you will buy a good dictionary
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