成绩表grade中字段score代表分数,以下()语句返回成绩表中的最低分。(选择两项)
A:select max(score) from grade 
B:select top 1 score from grade order by score asc 
C:Select min(score) from grade 
D:select top 1 score from grade order by score desc
出自:计算机科学