是一个很小的金额发音程序，真人发音，很好玩的耶，呵呵。。我也是从别的地方弄的！-is a very small amount of pronunciation procedures, live pronunciation of Jerusalem is a lot of fun, huh. . I also get from some other place!

Caution tagging for live line works

为初学者学它很有帮住，它写的很详细,各方面的一些细节都写得很深入。不愧是一部好的资料-It is useful to help beginners learn to live, write it in great detail, of some of the details are written very deeply. Is indeed a good information

国家精品课程，主要讲述了数据库的并发控制，内容为：（1）并发操作带来的数据为一致，（2）并发控制的主要技术——封锁 （3）封锁协议 （4）死锁和活锁-National quality courses, mainly about database concurrency control: (1) concurrent operation to bring the data is consistent, and (2) concurrency control technology- the bloc