A、lighter than air
B、heavier than air
C、a yellow gas that is easily recognized
D、mildly toxic
更多“Since accumulations of H<sub>2</sub>S gas on a ship can be dangerous to personnel，it is important to know that H<sub>2</sub>S gas is（）.”相关的问题
A、visual inspection for dirt accumulation B、high megger readings C、low operating temperature D、the time period since the last cleaning
A、drain the accumulators and purge with oxygen B、bleed off all stored energy from the accumulators completely C、charge the accumulators to prevent system energy loss D、pump the hydraulic fluid into the accumulators to prevent fluid loss
A、12 months since last dry-docking B、18 months since last dry-docking C、24 months since last dry-docking D、36 months since last dry-docking
A、A.high pressure fluid accumulators B、B.driving air-powered plunger pumps C、C.filling open-circuit breathing systems D、D.bladder-type accumulators
A、Both RTA and RTB will do LSA7/5 translation，since they are both NSSA ABRs B、RTA will do LSA7/5 translation，since it has the lower router ID C、RTB will do LSA7/5 translation，since it has the higher router ID D、The redistributing router will do LSA7/5 translation，since it is within the NSSA
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