在学生选课表SC中，查询选修了3号课程的学生的学号(XH)及其成绩(GD)。查询结果按分数的降序排列。实现该功能的正确SQL语句是( )。

A:SELECT XH，GD FROM SC WHERE CH='3'ORDER BY GD DESC B:SELECT XH，GD FROM SC WHERE CH='3'ORDER BY GD ASC C:SELECT XH，GD FROM SC WHERE CH='3'GROUP BY GD DESC D:SELECT XH，GD FROM SC WHERE CH='3' GROUP BY GD ASC

在学生选课表(SC)中，查询选修了3号课程(课程号CH)的学生的学号(XH)及其成绩(GD)。查询结果按分数的降序排列。实现该功能的正确SQL语句是( )。

A:SELECT XH，GD FROM SC WHERE CH='3'ORDER BY GD DESC B:SELECT XH，GD FROM SC WHERE CH='3'ORDER BY GD ASC C:SELECT XH，GD FROM SC WHERE CH='3'GROUP BY GD DESC D:SELECT XH，GD FROM SC WHERE CH='3'GROUP BY GD ASC

在学生选课表(SC) 中，查询选修了3号课程的学生的学号(XH)及其成绩(GD) ，查询结果按分数的降序排列。实现该功能的正确SQL语句是 ______。

A:SELECT XH，GD FROM SC WHERE CH＝“3”ORDER BY GD DESC B:SELECT XH，GD FROM SC WHERE CH＝“3”ORDER BY GD ASC C:SELECT XH，GD FROM SC WHERE CH＝“3”GROUP BY GD DESC D:SELECT XH，GD FROM SC WHERE CH＝“3”GROUP BY GD ASC

在学生选课表(SC) 中，查询选修了3号课程(课程号CH)的学生的学号(XH)及其成绩(GD) 。查询结果按分数的降序排列。实现该功能的正确SQL语句( )。

A:SELECR XH，GD FROM SC WHERE CH='3' ORDER BY GD DESC:// B:SELECT XH，GD FROM SC WHERE CH='3' ORDER BY GD ASC； C:SELECT XH，GD FROM SC WHERE CH='3'GROUP BY GD DESC； D:SELECT XH，GD FROM SC WHERE CH='3' GROUP BY GD ASC；

在学生选课表(SC) 中，查询选修了3号课程的学生的学号(XH)及其成绩(GD) ，查询结果按分数的降序排列。实现该功能的正确SQL语句是 ______。

A:SELECT XH，GD FROM SC WHERE CH＝“3”ORDER BY GD DESC B:SELECT XH，GD FROM SC WHERE CH＝“3”ORDER BY GD ASC C:SELECT XH，GD FROM SC WHERE CH＝“3”GROUP BY GD DESC D:SELECT XH，GD FROM SC WHERE CH＝“3”GROUP BY GD ASC

在学生选课表(SC)中，查询选修了3号课程(课程号CH)的学生的学号(XH)及其成绩(GD)。查询结果按分数的降序排列。实现该功能的正确SQL语句______。

A:SELECT XH, GD FROM SC WHERE CH='3' ORDER BY GD DESC; B:SELECT XH, GD FROM SC WHERE CH='3' ORDER BY GD ASC; C:SELECT XH, GD FROM SC WHERE CH='3' GROUP BY GD DESC; D:SELECT XH, GD FROM SC WHERE CH='3' GROUP BY GD ASC;

在学生选课表(SC) 中，查询选修了3号课程(课程号CH)的学生的学号(XH)及其成绩(GD) 。查询结果按分数的降序排列。实现该功能的正确SQL语句是______。

A:SELECT XH,GD FROM SC WHERE CH='3' ORDER BY GD DESC:// B:SELECT XH,GD FROM SC WHERE CH='3' ORDER BY GD ASC； C:SELECT XH,GD FROM SC WHERE CH='3' GROUP BY GD DESC:// D:SELECT XH,GD FROM SC WHERE CH='3' GROUP BY GD ASC://