file 1:/user_files/hahaha/File/第7章算法程序与计算系统之灵魂练习题答案解析.docx
file 2:/user_files/hahaha/File/第6章由机器语言到高级语言:程序编写与编译练习题答案解析.doc
your attention please:
the average 's abbr in SQL is AVE not AVER !!!
this fault made me lose one point in the exam!!!!
so don't ever make that stupid mistake again!!!
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