青霉素发酵罐的通气量为0.5V/V·min,进气氧含量21%,排气氧含量19.5%,罐压1.4kg/cm2,发酵液相对溶解氧浓度为30%,求此时的摄氧率和K L a。
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【简答题】完形填空 Have you ever asked yourself why children go to school? You will probably 1 __ they go to learn languages, geography, history, science and all the other subjects. That is quite 2 ,but why do they...
【简答题】完形填空。 Have you ever asked yourself why children go to school? You will probably 1 they go to learn language, geography, history, science and all the other subjects. That is quite true. But 2 do they l...