考虑E>0的情形(散射问题): 定态 Schroedinger方程

1.1波粒二象性 什么是波粒二象性?是指几何形状,还是指运动形态? 1)光的波粒二象性 =h p 其中,E、p是粒子的物理量,v、λ是波动物理量 波粒二象性是指物理量的取值既具有粒子性,也具有波动性

Corporations, Shares, and shareholder Rights People who own stock have an equity interest in the organization e f a business has shares of stock it is organized as a corporation rather than a proprietorship or a partnership The shares of some corporations are closely held, while others are publicly held The two types of stock are common stock and preferred stock

1. A situation is efficient if a. no change can help some people without hurting others. b. the gain for some people offsets the loss for others. .C. the gain for some people more than offsets the loss to others. d. consumer surplus is maximized. e. producer surplus is maximized

Multiple Choice 1. Equilibrium a. is a concept unique to economics. b. always occurs where supply equals demand. C. results when opposing forces fail to cancel each other out. d. indicates balance. e. all of the above

1. Choose the correct path taken by a pair of electrons as it travels down the e ectron transport chain:

一、A型选择题 1.最早发现的磺胺类抗菌药为 A.百浪多息 B.可溶性百浪多息 C.对乙酰氨基苯磺酰胺 D.对氨基苯磺酰胺 E.苯磺酰胺

1.(06-1,2340设=21 -12为2阶单位矩阵,B满足BA=B+2E,则 B|=() 解应填2

第1章数据库原理概述 1.1数据库技术的发展 1.2数据库系统的组成 1.3数据库体系结构 1.4数据模型 1.5E-R方法 1.6关系数据库设计理论 1.7数据库设计步骤 1.8关系数据库设计实例

第四节发动机总体构造 一、四冲程汽油机的一般构造(以东风EQ1090E型汽车为例 (一)机体组: 包括气缸盖3、气缸体11、 油底壳26。有的发动机将气缸 体分铸成上下两部分,上部称 为气缸体,下部称为曲轴箱。 机体的作用是作为发动机各 心 机构、各系统的装配基体,本 身许多部分又分比别是各机构 、各系统的组成部分。如气缸 盖、气缸体上钻的润滑油道是 润滑系统的组成部分,气缸盖 、气缸体上铸的冷却水套是冷 却系统的组成部分等