One litter of air at atmospheric pressure and 25C is held in a flask.the pressure of oxygen in the flask is 0.201 atm(20.4kpa).the concentration of oxygen in the flask ,in mole per litter is A 8.2 B 0.12 C0.098 D0.0082 请问选哪个 然后为什么

One litter of air at atmospheric pressure and 25C is held in a flask.the pressure of oxygen in the flask is 0.201 atm(20.4kpa).the concentration of oxygen in the flask ,in mole per litter is A 8.2 B 0.12 C0.098 D0.0082 请问选哪个 然后为什么 litter by litter one goes 那首歌有a litter love,litterkiss,a litter bug,litter gift,all of litter some 那首歌有a litter love,litterkiss,a litter bug,litter gift,all of litter some on a freeing coming the litter match gril was found frozen at the corner of the street怎么翻译 you can find a litter box___the corner of the kitchena,at b,on c,in d,with why can't you litter at the 英语翻译How air suspensionAn air suspension system for a vehicle,said vehicle having a frame,a front axle,at least one rear axle and wheels mounted near opposite ends of said rear axle,said air suspension system being mounted adjacent each wheel 英语翻译building your own air force,one MIG at a time 英语翻译The organic carbon content of the soil was relatively high at the shrub patches,and this is consistent with their high litter cover and soil moisture content because moisture increases the rates of litter decomposition and organic carbon 英语翻译High ratio mode At a predetermined increase in pressure,the pump automatically shifts into high pressure,low flow mode.BenefitsTwin pump performance for the price and the size of one.Achieve the desired cycle time minimizing air consumpti The ___ of oxygen in the air rises, and at last the air becomes breathableA. numberB. dealC. amountD. mount water storage capacity of litter是什么意思 Air pollution is one of the b____problems in our life 按首字母应该填什么 b____ 短文首字母填空Paper that is thrown in the street is called litter.the people of New York wanted a clean city.They wanted to get fid of r______.They made a big litter basket.It was a reminder to everyone to throw paper into litter baskets.One l Air pollution is one of the major problems of the modern world.A great deal of energy is needed to nowadays the overuse of cars is one of the main causes of air pollution这篇文章这篇文章的后面 Air pollution is one of the major problems of the modern world.A great deal of energy is needed to