题目内容

递交名片的顺序是尊者居前

A. 对
B. 错

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当下国内最常用的商务名片的规格是10×5.5厘米

A. 对
B. 错

对于一个Java源程序,import ,package,定义class正确的顺序是

A. class,package,import
B. package,class,import
C. package,import,class
D. import,package,class

下面选项中,用来统计记录条数的函数是

A. avg
B. sum
C. count
D. length

假定student表中有字段grade,grade代表分数,依次统计grade字段的最大值,最小值,平均值的SQL语句是

A. SELECT max(grade),min(grade),average(grade) FROM student;
B. SELECT max(grade),min(grade),avg(grade) FROM student;
C. SELECT min(grade),average(grade),max(grade) FROM student;
D. SELECT min(grade),avg(grade),max(grade) FROM student;

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