lesson 15 Fifty pence worth of trouble appreciate =be grateful for We really appreciate all the help you gave us last month. I appreciate your making the effort to come. 比thank you强点的谢谢 It's very nice of you. I really appreciate it. I would appreciat…

Text The secretary told me that Mr. Harmsworth would see me. I felt very nervous when I went into his office. He did not look up from his desk when I entered. After I had sat down, he said that business was very bad. He told me that the firm could no…

内容概要:1. rsync 命令格式rsync [OPTION]... SRC  DESTrsync [OPTION]... SRC  [USER@]HOST:DESTrsync [OPTION]... [USER@]HOST:SRC  DESTrsync [OPTION]... [USER@]HOST::SRC  DESTrsync [OPTION]... SRC  [USER@]HOST::DEST 2. rsync常用选项-a 归档模式,表示以递归方式传输文件,并保持所有属性,等同于-rl…

这个课程的参考视频和图片来自youtube. 主要学到的知识点有: Build in functions in java.util.Collections Need to implement a comparator - a special class which returns an integer comparision of two object, if  compare(a,b), if return negative number, a will be before b, otherw…

Why is secrecy particularly important in the chemical industries? Two factors weigh heavily against the effectiveness of scientific research in industry. One is the general atmosphere of secrecy in which it is carried out, the other the lack of freed…

Lesson1  A puma at large Pumas are large, cat-like animals which are found in America. When reports came into London Zoo that a wild puma had been spotted forty-five miles south of London, they were not taken seriously. However, as the evidence began…

原文: A small blue case. I left a suitcase on the train to London the other day. Can you describe it ,sir? It is a small blue case and it's got a zip. There is a lable on the hadle with my name and address on it. Is this case yours? No,thas's not mine.…

31w/m 43 Children always appreciate small gifts of money. Father, of course, provides a regular supply of pocket-money, but uncles and aunts are always a source of extra income. With some children, small sums go a long way. If six pences are not exch…

The C10K problem [Help save the best Linux news source on the web -- subscribe to Linux Weekly News! ] It's time for web servers to handle ten thousand clients simultaneously, don't you think? After all, the web is a big place now. And computers are …

3.1 Function callsIn the context of programming, a function is a named sequence of statements that performs a computation. When you define a function, you specify the name and the sequence of statements. Later, you can “call” the function by name. We…