ssd5所有练习题总集，包括选择题，大题等。可以帮助学生不用上卡耐基网就可做题。ssd5 the total set of all exercises, including multiple-choice questions, big questions and so on. Can help students do not need to be able to do Carnegie network problems. (2009-12-19, CHM, 400KB, 下载57次)