查询学生选修课程成绩小于60分的学号,正确的SQL语句是 A: SELECT DISTINCT 学号 FROM SC WHERE "成绩"<60 B: SELECT DISTINCT 学号 FRCIM SC WHERE 成绩 <"60" C: SELECT DISTINCT 学号 FROM SC WHERE 成绩 <60 D: SELECT DISTINCT "学号" FROM SC WHERE "成绩"<60
查询学生选修课程成绩小于60分的学号,正确的SQL语句是 A: SELECT DISTINCT 学号 FROM SC WHERE "成绩"<60 B: SELECT DISTINCT 学号 FRCIM SC WHERE 成绩 <"60" C: SELECT DISTINCT 学号 FROM SC WHERE 成绩 <60 D: SELECT DISTINCT "学号" FROM SC WHERE "成绩"<60
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