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【单选题】
In the relation of tblVideo(Video_Code, Title, Status, Category, Director, Released) , Which SQL Command can find the movies that were released before 1980, show Title, Category, Director and Release date and sort by title?A.
Select Title,Category,Director,Released From tblVideo where Released>1980 order by Title;
B.
Select Title , Category , Director , Released From tblVideo where Released <= 1980 order by Title desc;
C.
Select * where Released = 1980 order by Title;
D.
Select Title , Category , Director , Released From tblVideo where Released < 1980 order by Title ;
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【简答题】抑制过敏介质释放，主要用于预防哮喘发作的药物是（）。
【单选题】章节课程分析的案例中,迅雷公司创业时利用资源采取的方式是( )。
A.
充分利用自有资源；
B.
创造性拼凑资源；
C.
开源节流，控制成本；
D.
发挥资源的杠杆效应。
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