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【单选题】
按有效数字运算规则: 的结果是A.
1
B.
1.0
C.
1.00
D.
1.000
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举一反三
【简答题】student(sno,sname.sage,sdept) sc(sno,cno,grade) course(cno,cname,ccredit) 分组查询。求每门课程的最高分、最低分、平均分。显示课程名、最高分、最低分、平均分。
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【单选题】听力原文：W: You are going to miss your sister since she is going to get married, aren't you? M: Sure. We have never been separated since her birth, almost for twenty years. Well, she's grown up. I just ho...
A.
The woman will miss her sister.
B.
The man is going to get married.
C.
The man's sister is going to get married.
D.
The woman has separated with the man.
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