A、The lower；the worse
B、The higher；the better
C、The lower；the better
D、The highest；the worst
更多“（） the oxygen content in the exhaust gas, （） the combustion is.”相关的问题
A、enter the tank safely B、suspect the accuracy of the reading C、ventilate the tank D、test for nitrogen
A、cutting off the supply of oxygen B、removing the fuel C、spraying with water D、adding oxygen
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、in the presence of oxygen B、without oxygen C、in the presence of nutrition D、without nutrition
A、control the pressure of the oxygen as it enters the body B、allow the wearer to manually give himself oxygen C、release excess heat which would otherwise cause the bottle to explode D、allow exhaled gases to pass outside the bottle
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
A、mimimum oxygen content line B、critical displacement line C、critical dilution line D、upper threshold limit
A、minimum oxygen content line B、critical displacement line C、critical dilution line D、upper threshold limit
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