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【多选题】
下列项目中关于SQL说法正确的是（）A.
SQL语言是关系数据库的国际标准语言
B.
SQL语言具有数据定义、查询、操纵和控制功能
C.
SQL语言可以自动实现关系数据库的规范化
D.
SQL语言也被称为结构化查询语言
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【简答题】C. “An apple a day keeps the doctor away.” Similarly, if we drink a little more water ever day, we may find that we need to go to the doctor a lot less often. A healthy diet is made up of water and a ...
【简答题】Have you ever heard of Back-to-Front Day? It is a festival in Britain. On that day, the s have to go to school. And the children? They are the policemen and firemen; they sit in the offices and c...
【多选题】孕产妇用药原则，哪些是正确的？（）
A.
必须有明确指征，避免不必要的用药
B.
不要擅自用药，必须在医生指导下使用
C.
能用一种药物，避免联合用药
D.
避免使用尚难确定对胎儿有无不良影响的新药
【简答题】尚德电力由施正荣博士于( )年1月建立，是一家集研发、生产、销售为一体的外商独资高新技术光伏企业。 A.2000 B.2001 C.2002 D.2003
【简答题】孕产妇用药原则有哪些？
【单选题】After the earthquake, the president _____ a three-day period of mourning, the first-ever event of its kind for ordinary people.
A.
suffered
B.
declared
C.
confirmed
D.
informed
【简答题】“An apple a day keeps the doctor away.” Similarly, if we drink a little more water ever day, we may find that we need to go to the doctor a lot less often. A healthy diet is made up of water and a gre...
【简答题】My dream is to become an orthodontist, fly to new heights, and impact the world. Ever since the day I got braces(牙箍), I have thought about how it would be for me to become an orthodontist and make oth...
【单选题】-- Have you ever considered _______ Paris some day?
A.
visit
B.
visiting
C.
visits
D.
visited
【简答题】孕妇用药原则有哪些?
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