问题
名词解释
补料分批培养
答案
参考答案:
在分批培养过程中补入新鲜的料液,以克服营养不足而导致的发酵过早结束的缺点。在此过程中只有料液的加入没有料液的取出,所以发酵结束时发酵液体积比发酵开始时有所增加。在工厂的实际生产中采用这种方法很多。
补料分批培养
参考答案:
在分批培养过程中补入新鲜的料液,以克服营养不足而导致的发酵过早结束的缺点。在此过程中只有料液的加入没有料液的取出,所以发酵结束时发酵液体积比发酵开始时有所增加。在工厂的实际生产中采用这种方法很多。
完形填空(共15小题;每小题1分,计15分) 阅读下列短文,从文后各题所给的四个选项中选出一个最佳答案。 Do you know how to study __1__ and make your study more effective (有效的)? We all know that Chinese students usually study very hard for long __2__, This is very good ,but it doesn’t__3__a lot ,for an effective student must have enough sleep ,enough food and enough rest and __4__. Every day you need to go out for a walk or visit some friends or some nice places. It’s good for your__5__. When you return __6__your studies, your mind will be refreshed(清醒)and you’ll learn more__7__study better. Psychologists (心理学家) __8__ that learning takes place this way. Here take English learning __9__ an example. First you make a lot of progress(进步)and you feel happy. __10__ your language study seems to stay the same. So you will think you’re learning nothing and you may give __11_. This can last for days or even weeks, yet you __12__ give up, and at some point your language study will again take another big __13__. You’ll see that you really have been learning all along. If you get enough sleep, food, rest and exercise, studying English can be very effective and __14_ . Don’t give up along the way. Learn __15__ ,you are sure to get a good result(结果).
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