皮皮学，免费搜题
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【单选题】
BookStore 数据库中有销售明细表 OrderDetail(OrderCode, BookCode, Amount) 查询销售总量前 20% 的图书,并按总销量降序排列。 SQL 语句: SELECT TOP 20 PERCENT Bookcode As 书号 , SUM(Amount)As 总销量 ROM OrderDetail GROUP BY Bookcode ORDER BY ________A.
SUM(Amount) DESC
B.
COUNT(Amount) DESC
C.
ADD(Amount) DESC
D.
Amount DESC
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知识点：
皮皮学刷刷变学霸
举一反三
【单选题】听力原文：W: It's good to see you again. What are you doing these days? You are still working at the same place, aren't you? M: Yes, I am. And I'm counting the days until retirement. Q: What can we learn a...
A.
He loves his present job.
B.
He is going to quit his job.
C.
He is going to open a store.
D.
He works in a repair shop.
【简答题】改错题。 1. What are these? These are apples. 2. Mum, they are my friends, Jim and Mary. 3. — Your picture is very good. — No, it's not good. 4. They are woman teachers. 5. Are they your uncle?
【单选题】器官捐赠符合法律要求的是
A.
任何年龄的个人死后可捐赠其身体
B.
个人死亡后近亲无权作捐赠表示
C.
凡18岁以上个人生前自愿死后可捐赠其身体或器官
D.
死者已做捐赠表示，家属可以取消
E.
捐赠意愿可由家属代捐赠者书写和签名
【简答题】What
are these good qualities?
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