These notes essentially tie up a few loose ends in Lecture 8; in particular, I exhibit examples of inefficiencies in first- and second-price auctions. I would also like to briefly comment on Questions 1 and 2 in Problem Set 2

一.判断题 1.错;2.对;3.错;4.错;5.对。 二.选择、填空题 1.B;2.C;3.固有频率;4.A;5.向左移动-1;6.1 3 7.大小为-ml2a+M12a,转向逆时针

1. due: (showing arrangements made in advance) expected; supposed (to) Examples: The next train to London is due here at 4 o 'clock. The plane that was due to arrive at 10 has been delayed for 2 hours by a heavy fog

1技术参数: ·沟长、入沟流量 A计划灌水定额=t时间内入渗水量 +沟中蓄水量 mal =(b h+po ktl)

As the first food of infant mammals, milk provides an important source of fat, protein, carbohydrate, vitamins and minerals, essential to the development of tissue and bone, and the growth of young. Milk is also a substance used beneficially by humans of all ages, both as a food in its own right and as a material for the production of milk products and milk-based food ingredients

一、简谐振动的描述 1、简谐振动方程: 2、描述简谐振动的物理量: (1)由系统性质决定、V、T: (2)由初始条件决定A、φ: 3、用旋转矢量描述简谐振动:

剑桥（join in）版五年级英语下册_电子教案_Unit 2 Life in the Arctic （6a,6b,7）

The stories of this unit demonstrate how things are not al ways as easy as they look; the grass is not lways greener on the other side. After learning it, Ss should be able to have a better learning of the hardships and problems of studying and living in a new country appreciate the text structure( paragraph structure as a general statement supported by some master the usage of the key words and expressions

I. Teaching arrangement The recommended timing for this unit is 300 minutes Text A------150 minutes Text B------100 minutes Text C------50 minutes If pressed for time, the teacher can leave\text C\ for self-study

This unit explores the generation gap between young people and their parents. After shing studying Section A, Ss should be able grasp the main idea(young people and their parents might think quite differently on the same thing and seem to ignore what is important in each other's worlds. This put them in separate worlds and creates the generation gap