【正确答案】正确答案:在命令窗口中依次输入以下代码,分别完成题目中各个要求。 ①SELECT*FROM BOOKS_BAK WHERE 书名LIKE“%计算机%”INTO TABLE BOOKS BAK ②UPDATE BOOKS-BAK SET价格=价格*(1—0.05) ③SELECT TOP 1 BOOK_BAK.出版单位,avg(books_bak.价格)as均价FROM books_bak Group By Books bak.出版社HAVING均价>=25 ORER BY 2 INTO TABLE new table4.dbf。