网友您好, 请在下方输入框内输入要搜索的题目:

题目内容 (请给出正确答案)
This part of the city has been ( )as a shopping area.

A、played

B、organized

C、zoned

D、specialized


参考答案

更多 “ This part of the city has been ( )as a shopping area. A、playedB、organizedC、zonedD、specialized ” 相关考题
考题 How long() you() a member of the club? A.have,,joinedB.have,,beenC.has,,joinedD.has,,been

考题 关系模式CSZ(CITY,ST,ZIP)其属性组上的函数依赖集为F={(CITY,ST)→ZIP, ZIP→CITY},关系模式CSZ的主属性是A.ZIPB.CITY,ST,ZIPC.CITY,ZIPD.ST,ZIP

考题 Why()the old block of flats()demolished next month? A、are…beingB、is…beingC、has…beenD、have…been

考题 On Sundays she usually does some ___ in ___. A、shopping/ big shopB、shopping/big shoppingsC、shoppings/big shopsD、shopping/big shops

考题 He is talking so much about America as if he ____ there.A、had beenB、has beenC、wasD、been

考题 关系模式CSZ(CITY,ST,ZIP)其属性组上的函数依赖集为F={(CITY,ST)+ZIP, ZIP→CITY},关系模式CSZ的主属性是A.ZIPB.CITY,ST,ZIPC.CITY,ZIPD.ST,ZIP

考题 Given the following DDL for the PARTS table:CREATE TABLE parts (part_no INT(9) NOT NULL, part_name VARCHAR(24), part_remain INT(9));All part numbers entered will be different and all rows should be displayed in order of increasing part numbers whenever the table is queried. Which of the following create index statements will meet this criteria and require the least amount of storage for the index object?()A.CREATE UNIQUE INDEX idx_partno ON parts(part_no)B.CREATE UNIQUE INDEX idx_partno ON parts(part_name ASC)C.CREATE UNIQUE INDEX idx_partno ON parts(part_name, part_no ASC)D.CREATE UNIQUE INDEX idx_partno ON parts(part_no, part_name ASC)

考题 关系模式CSZ(CITY,ST,ZIP)其属性组上的函数依赖集为F={(CITY,ST)→ZIP, P→CITY},关系模式CSZ的主属性是A.ZIPB.CITY,ST,ZIPC.CITY,ZIPD.ST,ZIP

考题 关系模式CSZ(CITY,ST,ZIP)其属性组上的函数依赖集为F={(CITY,ST)→ZIP,ZIP→CITY},关系模式CSZ的主属性是A.ZIPB.CITY,ST,ZIPC.CITY,ZIPD.ST,ZIP

考题 将students中的列变量重新命名为: (1)id_number, name, gender, score, has_graduate (2)选出Bob的性别gender,并存入变量bob_gender (3)选出列has_graduate,并存入向量status (4)创建数据框part_df,其中包含前三个学生的所有信息 (5)创建数据框rest_df,包含其余学生的所有信息