A.SELECT*FROMStudentsWHERE性别=“女”GROUPBY学号DESCB.SELECT*FROMStudentsWHERE性别=“女”GROUPBY学号ASCC.SELECT*FROMStudentsWHERE性别=“女”ORDERBY学号ASCD.SELECT*FROMStudentsWHERE性别=“女”ORDERBY学号DESC
A.嵌入B.链接C.关联D.绑定
A.剪裁B.拉伸C.缩放D.平铺