单项选择题
A.SELECT 性别，AVG(语文) AS 语文平均分，AVG(数学) AS 数学平均分，AVG(专业) AS 专业平均分 FROM 学生
B.SELECT 性别，AVG(语文) AS 语文平均分，AVG(数学) AS 数学平均分，AVG(专业) AS 专业平均分 FROM 学生 ORDER BY 性别
C.SELECT 性别，AVG(语文) AS 语文平均分，AVG(数学) AS 数学平均分，AVG(专业) AS 专业平均分 FROM 学生 GROUP BY 性别
D.SELECT 性别，AVG(语文) AS 语文平均分，AVG(数学) AS 数学平均分，AVG(专业) AS 专业平均分 FROM 学生 ORDER BY 性别 ASC
