The buzz word for this phenomenon is cloud computing, which means that many applications no longer rely on operating systems. Rather, they run on the Web and may be accessed through a browser.
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【简答题】有学生信息表student,求年龄在20~22岁之间(含20岁和22岁)的学生姓名和年龄的SQL语句是:SELECT sname,age FROM student WHERE age________。