一、填空(共20分,每格0.5分) 1.革兰氏染色法是鉴别细菌的重要方法,染色的要点如下:先用染色,再加b处理,使菌体着色,然后用c脱色,最后用d复染,呈e为革兰氏阳性反应。 2.放线菌菌丝体分为a菌丝和b菌丝,在无性繁殖中分化为c,d和e等 3.酵母的出芽过程包括:首先在a邻近的中心体产生小的突起点,同时细胞b向外突出,冒出小芽,然后部分已增大和伸长的、e进入芽内,最后芽细胞从母细胞得到f、g、h、等,与母细胞分离并成为独立的细胞

第7章图 7.1图的定又和木语 1、图、顶点、边 图G是由集合V(G)和E(G)组成,记为G=e),其中V(G)是顶点的非空有限集合,E(G)是边的有限集合,边是点的无序对或有序对

任意方向传播的平面波 设平面波的传播方向为e,则与e,垂直的平面为该平面波的波面, 如下图示 令坐标原点至波面的距离为d,坐 波面 标原点的电场强度为E0,则波面 上P0点的场强应为

3.1连续和间断 定义∫(x)定义在(ab),x0∈(ab),若mf(x)→>f(x),则称函数f(x)在 点x连续,x0称为连续点,否则称x为间断点 函数∫(x)在x∈(a,b)连续也可用E-6语言来叙述:∫(x)定义于(a,b),x0∈(a,b) 若E>0,38>0,使得当x∈(ab)且x-x∫(xo+0)且 f(x0-0)=f(x0)=f(x0+0), 即如果∫(x)在x左右极限都存在,且等于该点函数值,称∫(x)在该点连续

Welcome to the wonderful new world of e-Text! With its Acrobat 4.0 software shell, e-Text links page files of your textbook and study guide with each other, along with other valuable digital and online resources, to create a non-linear learning experience that's fast, effective and fun

1. Carbohydrates are aldehyde or ketone compounds with multiple hydroxyl groups or substances that can yield such compounds on hydrolysis(p. 293) 1.1 Carbohydrates are the most abundant biomolecules on earth and have multiple roles in all forms of life. 1.1.1 Carbohydrates serve as energy stores (e.g., starch in plants, glycogen in animals), fuels (e.g., glucose), and metabolic intermediates (e.., ATP, many coenzymes)

◼ E-business in the world ◼ E-business in China ◼ Tencent QQ and Wechat: ◼ Company Overview and key business figures ◼ Situation Analysis ◼ competitors’ analysis ◼ E-business strategies ◼ Communications

▪ Describe operational challenges for a startup e-business ▪ Define legal, office space, and human resources issues ▪ Discuss electronic payment methods ▪ Explain front-end and back-end e-business systems

▪ Describe the financing issues associated with an e-business startup ▪ Discuss the role of informal investors in an e-business startup ▪ Identify issues important to venture capital investors

E-mail是Internet最早的主要应用之一。大 多数用户使用互联网络，都是从使用电子邮件 （Electronic mail,简称E-mail)开始的。 E￾mail有着广泛的应用，方便、经济、快捷。 提供Email收发的邮件服务器是各类网站的 一个重要组成部分，尤其对于一个独立的企业 或机构来说，建立邮件服务器是十分必要的