13-1概述(Introduction) 13-2杆件变形能的计算( Calculation of strain energy for various types of loading 13-3互等定理(Reciprocal theorems) 13-4单位荷载法·莫尔定理(Unit-load method mohr's theorem) 13-5卡氏定理(Castigliano's' Theorem) 13-6计算莫尔积分的图乘法(The meth od of moment areas for mohr's integration)

一.磁现象及其本质 1.一般磁现象 (1)磁铁两极:N极,S极;不可分;同极斥,异极吸. (2)地磁小磁针:N指北,S指南.地磁N极在南, 地磁S极在北

Main idea LL(1) Parsing uses an explicit stack rather than recursive calls to perform a parse An example: – a simple grammar for the strings of balanced parentheses: S→(S) S∣ε The following table shows the actions of a top￾down parser given this grammar and the string ( )

5.1 拉普拉斯变换 一、从傅里叶变换到拉普拉斯变换 二、收敛域 三、(单边)拉普拉斯变换 5.2 拉普拉斯变换的性质 5.3 拉普拉斯变换逆变换 5.4 复频域分析 一、微分方程的变换解 二、系统函数 三、系统的s域框图 四、电路的s域模型

Foreword he State of the World's Forests reports every two years on the status of forests, recent major policy and institutional developments and key issues concerning the forest sector. This is the fourth edition of the publication, the purpose of which is to make current, reliable and policy-relevant information widely available to polic makers, foresters and other natural resource managers, academics, forest industry and civil society. Our hope is that it will facilitate informed discussion and decision making with regard to the world,s forests As we approach the benchmark year of 2002, the tenth anniversary of the United Nations Conference on Environment and Development (UNCED), it is an opportune moment to take stock of the progress

要通过Wi n s o c k建立通信，必须了解如何利用指定的协议为工作站定址。本章将一一说明 Wi n s o c k支持的协议以及各协议如何把一个指定家族的地址解析成网络上一台具体的机器。 Winsock 2引入了几个新的、与协议无关的函数，它们可和任何一个地址家族一起使用；但是 大多数情况下，各协议家族都有自己的地址解析机制，要么通过一个函数，要么作为一个投 给g e t s o c k o p t的选项。本章只讲解各协议组成地址结构时所需的一些基本知识

Disioint-set data structure (Union-Find) Problem: maintain a dynamic collection of pairwise-disjoint sets S=(S Each set S; has one element distinguished as the representative element, rep[sil lust support 3 operations

一、选择题 1.下列配制溶液的方法正确的是() (A)在溶解Na2S2O3的水中加入少量Na2CO3溶液 (B)为抑制Na2S2O3水解,在Na2S2O3溶液中加少量稀H2SO4 (C)将SnCl2·2H2O用水溶解即得到SnCl2溶液 (D)用分析天平准确称取NaOH固体,加水溶解后,用容量瓶稀释到所要求的体积

第十章s、ds区元素 1.S区元素及常见阳离子的分离和鉴定 2.电子层构型的异同及某些性质的差异 3.ds区元素化合物的某些性质 (1)Cu(I)与Cu(Ⅱ)的稳定性及相互转化 (2)Hg与Hg(I)的结构特点 (3)Hg(I)与Hg(II)的稳定性及相互转化 (4)常见配合物的特点,类型及应用 (5)Cu2+,Ag+,Zn2+,Hg2+的分离及检出

Ch. 5 Hypothesis Testing The current framework of hypothesis testing is largely due to the work of Neyman and Pearson in the late 1920s, early 30s, complementing Fisher's work on estimation. As in estimation, we begin by postulating a statistical model but instead of seeking an estimator of 6 in e we consider the question whether