EC 2006 Prentice Hall 2 Learning Objectives 1. Define electronic commerce (EC) and describe its various categories. 2. Describe and discuss the content and framework of EC. 3. Describe the major types of EC transactions. 4. Describe the digital revolution as a driver of EC

第5套人教初中数学九上 22.1.3 二次函数y＝a(x－h)2＋k的图象和性质（第1课时）课件2

一、串、并行接口的特点 二、8255A的工作方式和编程 三、8255A的0、 1方式及其应用 四、 8251A、8250的初始化编程

第5套人教初中数学九上 22.1.3 二次函数y＝a(x－h)2＋k的图象和性质（第2课时）课件1

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 ( )

Outline Introduction People, Product, Process, and Project What is a Project? What is Project Management? How Project Management Relates to Other Disciplines History of Project Management

1．根据三力汇交定理，画出下面各图中 A 点的约束反力方向

一、数据类型声明(定义)不正确 1、float a,b,h,s; 2、sum? 3、scanf()语句格式不正确

1下列对字符串的定义中，错误的是： 。 – A) char str[7] = \FORTRAN\; – B) char str[] = \FORTRAN\; – C) char *str = \FORTRAN\; – D) char str[] =

Binary Code Natural Binary Coded Decimal (BCD) Decimal BCD group of four binary digits represent 0000 a single decimal digit