第一节信源的数学模型及分类 第二节离散信源的信息熵 第三节信息熵的基本性质 第四节离散无记忆的扩展信源 第五节离散平稳信源 第六节马尔可夫信源 第七节信源剩余度与自然语言的熵

I. Preparation Warm-up Activities 1. Pair Work: Talk with your neighbor about someone you love most. Words you may refer to: considerate patient a great helper generous housework hard-working point out one's mistakes a good cook encouraging tender honest gentle respectable easy to get along with a good listener kind caring

酶的分离纯化是酶工程的主要内容, 也是酶学研究过程中必不可少的环节。酶的分离纯化是指将酶从细胞或其他 含酶原料中提取出来,再与杂质分开 ,以获得符合研究或使用要求的酶的过程。其主要内容包括细胞破碎、酶的提取、离心分离、过滤与膜分离、 生沉淀分离、层析分离、电泳分离、萃命取分离、结晶等

Preparation What do you think of college? Or what kind of college life did you expect to have before you cametere? What do you expect to learn at college, more book knowledge or more practical social experience? Do you think you will relax after entering the college or you will study ten harder than in high school?

Oral Test for New Integrated english BandⅡ(2-A) Directions: Answer one of these questions briefly in no less than 100 words. You will be given three minutes to prepare for it. Marks will be given on both accuracy and fluency of your spoken English. 1. To be dependent on parents is a bad habit of young man. Do you agree with it? Why

随着酶的工业化纪产的发展,酶已广泛地应 用于工业、农业、医药、环保及科硏等领域 酶分子修饰,酶和细胞固定化等酶工程技本的 发展,使酶的应用显示出更加广阔美好的前景 第一节酶在轻工、食品方面的应用 目的国内外最广泛使用的领域是在食品和轻 工业部门。国内外大规模工业主产的α—淀粉酶 、糖化酶、蛋白酶、葡萄糖异构酶、果胶酶、 脂肪酶、纤维素酶、葡萄糖氧化酶等大部分都 在轻工和食品方面应用

以酶作为催化剂进行反应所需的设备称为酶反应器。 ·酶反应器基本上是游离酶、固定化酶或固定化细胞催化反应的容器(附加上混合取样和检测设备)。反应器的作用是以尽可能低的成本, 按一定的速度由规定的反应物制备特定产物。 酶反应器不同于化学反应器,它是在低温、低压下发挥作用,反应时的耗能和产能也比较少。酶反应器也不同于发酵反应器,因为它不表现自催化方式,即细胞的连续再生

Part I Listening comprehension(20) Directions: This part is to test your listening ability. There are two sections here Section A Directions: This section is to test your ability to understand short conversations. There are 10-recorded conversation on it. After each conversation, there is a recorded question. The conversations and dialogues will be spoken only once. When you hear a question

Directions: This part is to test your listening ability. It consists of three sections Section A Conversations(10%) DirectionS: In this section, you will hear 10 short conversations. At the end of each conversation, a question will be asked about what was said. Both the conversations and the questions will be spoken only once. After each question there will be a pause

Key to the Test a (Band Il, June, 2004) Part I Listening Comprehension Section a (10%) 1.D,2.A;3.D,4A;5.B,6.C;7.B;8.C;9A;10.B Section B (5%) 11.A;12.B,13.B;14C;15.D SectionC (5%) 16. phone number 17. information 18 explain quietly 20. make sure