Into I. Basic listening practice 1. Script w: What's that? Is it a toy? Did it get chewed by a dog? M: Hey, that s my mascot! My uncle gave it to me when I was five, and it's been with me ever since. It brought me luck in all my college exams. I can t bring myself to

Ⅱ. Listening skills Understanding Times and dates w: Oh, look at the clock It's 5: 15. I'll be late for Jennifer's birthday party! I was supposed to leave at 5 o'clock M: Don't worry! You still have some time. The clock is twenty minutes fast Q What time is it now?

Basic listening Practice 1. Script W: Let me recommend my brother to you. He's really done well in the stock market over the last M: The real question is this: How have you dine by taking his advice Q: What does the man mean?

Uint10 I. Basic listening Practice 1. Script W: Many Chinese students are too shy to say anything in a classroom M: I think they dont speak because their culture values modesty, and they dont want to appear to be showing off. Goes back to Confucius

Uint 8 I. Basic listening practice M: Scentists claim the world population has 99.5% of the same DNA w: But this doesnt tell us there is no such thing as race Q: What is true of the dna of difference races? 2. Script w: With the advent of the genetic map we know where everything is, but do we know

unit 9 Here are the seasons to be jolly I. Basic listening practice the holidays people celebrate, Christmas, Easter, Mother's Day . which are the most important to you? M: Christmas and easter, because they mark events in Jesus Christ's life: his birth and

一、矩阵的秩的概念 定义:在mn矩阵A中,任取k行k列(k≤m,k≤n), 位于这些行列交叉处的k2个元素,不改变它们在A中所处 的位置次序而得的k阶行列式,称为矩阵A的k阶子式 显然,mxn矩阵A的k阶子式共有C个

采用低能耗的终端过滤方式进行陶瓷膜法海水淡化预处理,比较了“絮凝沉降+陶瓷 膜”和“砂滤±陶瓷膜”两种预处理工艺.前者延长了膜再生周期,其陶瓷膜的平均渗透通量是 后者的1.6倍达到220L/(m2+),产水回收率大于90%经陶瓷膜预处理后的产水水质稳 定达到反渗透膜的进水水质要求结果表明,“絮凝沉降+陶瓷膜”预处理工艺明显优于“砂 滤+陶瓷膜”预处理工艺

MATLAB程序设计 一、M文件 二、程序控制结构 三、函数文件 四、程序举例 五、程序调试

第一节光照 一、光的概念 光具有二象性,既表现为波动性,又表现为粒子性。 由于光具有波动性,它是一种电磁波。光的特征可用波长和频率来表示。电磁波波长单位有米(m)、 厘米(cm)、微米(um)、纳米(nm)和埃(A°),其中常用的单位是纳米,它们的关系