问答题 Mr. Smith明天就要回纽约了，他写信感谢王先生对他在重庆旅游期间的热情招待和帮助。重庆近几年发展迅速，变化巨大，给Mr. Smith留下了深刻的印象。希望可以再来重庆。欢迎王先生去纽约，并再次表示感谢。

问答题 Thank you for purchasing the TX5 mainboard as heart of your computer"s system. We hope this instruction book will enable you to install TX5 in your system safely and without any errors. Although you may be familiar with some of the concepts we will explain, please read them again to avoid any problems.

单项选择题 In today"s job market, it"s of great importance to master basic skills in computer science and foreign languages.