A、concentrations of explosive gas
B、an oxygen deficiency in a space
C、the presence of harmful amounts of carbon monoxide
D、All of the above
更多“An oxygen indicator will detect （）.”相关的问题
A、litmus paper B、a combustible gas indicator C、an oxygen breathing apparatus D、an oxygen indicator
A、A.litmus paper B、B.a combustible gas indicator C、C.an oxygen breathing apparatus D、D.an oxygen indicator
A、An oxygen indicator B、A combustible gas indicator C、A combination combustible gas and oxygen indicator D、A flame safety lamp
A、litmus paper B、combustible gas indicator C、oxygen breathing apparatus D、oxygen indicator
A、the amount of oxygen in a space B、the presence of harmful amounts of carbon monoxide C、concentrations of explosive gas D、All of the above
A、sufficient oxygen in a compartment to support life B、combustible gases present C、hydrogen gas present D、All of the above
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