查询学生成绩，将成绩首先按英语，然后按数学从高到低排序，正确的语句是()Aselect*fromscoreorderbyenglishasc，mathsascBselect*fromscoreorderbymaths，englishCselect*fromscoreorderbyenglishdesc，mathsdescDselect*fromscoreorderbyenglish，maths