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证明与反驳――数学发现的逻辑。程序员需要逻辑思维能力，该书是经典之作！-Proved and refuted- the logic of mathematical discovery. Programmers need the ability of logical thinking, the book is a classic!

This book has brought together some of the best SQL experts to address the important issues of writing efficient and cohesive SQL statements. The topics include using advanced SQL constructs and how to write programs that utilize complex SQL queries. Not for the beginner, this book explores complex time-based SQL queries, managing set operations in SQL, and relational algebra with SQL. This is an indispensable handbook for any developer who is challenged with writing complex SQL inside applications.

伽利略系统介绍，包括伽利略卫星导航系统的接收机，信号，星座等-The Galileo system, including the Galileo satellite navigation system receiver, signal, constellation, etc.

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SCJP考题,学习笔记.SCJP考题,学习笔记-SCJP exam questions, study notes. SCJP exam questions, study notes

C++编程思想,很不错的书,推荐给大家,希望大家学习进步-C++ Programming ideas, very good book, recommended to everyone, hope that we learn and progress

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c++ primer是一本非常经典的书，对于c++爱好者来说是必读书目之一-c++ primer is a very classic book, for c++ enthusiasts is one of the must-read titles

DELPHI写的B/S程序，有演示，方便大家参。没有密码-B/S procedures, it demonstrated to facilitate participation. No password