题目
A.仅SELECT
B.SELECT,FROM
C.SELECT,GROUP
D.SELECT,INTO
第1题
A.SELECT*FROMstudentsORDERBYavg_grade
B.SELECT*FROMstudentsGROUPBYavg_gradeASC
C.SELECT*FROMstudentsORDERBYavg_gradeDESC
D.SELECT*FROMstudentsORDERbyavg_gradeasc
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