itgle.com

Some quite artistic, yet inexpensive fabrics are now being () from British mills.A.turned overB.turned outC.turned upD.turned off

题目
Some quite artistic, yet inexpensive fabrics are now being () from British mills.

A.turned over

B.turned out

C.turned up

D.turned off


相似考题
更多“Some quite artistic, yet inexpensive fabrics are now being () from British mills. ”相关问题
  • 第1题:

    The book was()interestingthat I read it in two hours.

    A.very

    B.so

    C.such

    D.quite


    正确答案:B

  • 第2题:

    有SQL语句:SELECT DISTINCT 系号 FROM 教师 WHERE 工资>=;ALL(SELECT 工资 FROM 教师 WHERE 系号=“02”)与如上语句等价的SQL语句是A) SELECT DISTINCT 系号 FROM 教师 WHERE 工资>=;(SELECT MAX(工资)FROM教师WHERE系号="02")B)SELECT DISTINCT 系号 FROM 教师 WHERE 工资>=;(SELECT MIN(工资)FROM 教师 WHERE 系号="02")C)SELECT DISTINCT 系号 FROM 教师 WHERE 工资>=;ANY(SELECT 工资 FROM 教师 WHERE 系号="02")D)SELECT DISTINCT 系号 FROM 教师 WHERE 工资>=;SOME(SELECT 工资 FROM 教师 WHERE 系号="02")


    正确答案:A
    题干中的SQL语句的功能是:查询那些工资比02系工资都高的教师所在的系号,四个选项中只有选项A中的查询条件与此等价,用(SELECT MAX(工资)FROM…WHERE…)实现选择出最高工资,故选项A为正确答案。选项B的查询条件表示工资大于02系中工资最低的教师的工资,选项C和D中的ANY和SOME是同义词,表示查询出只要比02系中某一个教师工资高的记录即可。

  • 第3题:

    有SQL语句: SELECT DISTINCT 系号 FROM 教师 WHERE 工资>=; ALL(SELECT 工资 FROM 教师 WHERE 系号 =“02”) 与如上语句等价的SQL语句是

    A.SELECT DISTINCT 系号 PROM 教师 WHERE 工资>=; (SELECT MAX(工资)FROM 教师 WHERE 系号=“02”)

    B.SELECT DISTINCT 系号 FROM 教师 WHERE 工资=; (SELECT MIN(工资)FROM 教师 WHERE 系号=“02”)

    C.SELECT DISTINCT 系号 FROM 教师 WHERE 工资>=; ANY(SELECT 工资 FROM 教师 WHERE 系号=“02”)

    D.SELECT DISTINCT 系号 FROM 教师 WHERE 工资>=; SOME(SELECT 工资 FROM 教师 WHERE 系号=“02”)


    正确答案:A
    解析:题干中的SQL语句的功能是:查询那些工资比02系工资都高的教师所在的系号,四个选项中只有选项A中的查询条件与此等价,用(SELECT MAX(工资)FROM…WHERE…)实现选择出最高工资,故选项A为正确答案。选项B的查询条件表示工资大于02系中工资最低的教师的工资,选项C和D中的州Y和SOME是同义词,表示查询出只要比02系中某一个教师工资高的记录即可。

  • 第4题:

    One study conducted by a psychologist(121)of interviewing workers before and after the installation of a robot. The robot was used to control a matching process of stamping and assembling metal parts. Prior to installation, much of the work done by skilled machinists. After installation, the robot did the work, but the workers controlled the robot through the robot through a control panel. The results of the study indicated that the workers praised the robot(122)eliminating the physical labor and fatigue(123)the manual operation, but complained of more and continued stress. Prior to installation of the robot, there was time for talking or short periods of relaxation between jobs. Now, however, because of the speed of the robot, there was a need for constant scanning and monitoring of the operation(124)performed by the robot has the installation of the robot created a better work environment? Has the change from physical labor to mental stress resulted in an improved(125)of life? Much additional research is necessary.

    A.Of

    B.consisted

    C.for

    D.being


    正确答案:B

  • 第5题:

    有SQL语句: SELECTDISTINCT系号FROM教师WHERE工资>=; ALL(SELECT工资FROM教师WHERE系号="02") 与如上语句等价的SQL语句是

    A.SELECTDISTINCT系号FROM教师WHERE工资>=; (SELECTMAX(工资)FROM教师WHERE系号="02")

    B.SELECTDISTINCT系号FROM教师WHERE工资>=; (SELECTMIN(工资)FROM教师WHERE系号="02")

    C.ELECTDISTINCT系号FROM教师WHERE工资>=; ANY(SELECT工资FROM教师WHERE系号="02")

    D.SELECTDISTINCT系号FROM教师WHERE工资>=; SOME(SELECT工资FROM教师WHERE系号="02")


    正确答案:A
    解析:本题SQL语句的含义是检索有教师工资大于或等于系号为“02”的所有教师工资的系号。ALL、ANY和SOME都是SQL语句中的量词,在进行比较运算时只要子查询中有一行能使结果为真,则结果为真,而ALL则要求子查询中的所有行都使结果为真时,结果才为真,因此在子查询中要使用MAX()函数求出“02”系的教师最高工资,其他系中只要有教师工资高于此函数值,结果便为真。

  • 第6题:

    有SQL语句:SELECT DISTINCT系号FROM教师WHERE 工资>=ALL (SELECT 工资FROM教师WHERE系号=\"02\") 与如上语句等价的SQL语句是

    A.SELECT DISTINCT系号FROM教师WHERE工资>=(SELECT MAX(工资)FROM教师WHERE 系号="02")

    B.SELECT DISTINCT系号FROM教师WHERE工资>=(SELECT MIN(工资)FROM教师WHERE 系号="02")

    C.SELECT DISTINCT系号FROM教师WHERE工资>=(ANY(SELECT(工资)FROM教师WHERE 系号="02")

    D.SELECT DISTINCT系号FROM教师WHERE工资>=(SOME (SELECT(工资)FROM教师WHERE 系号="02")


    正确答案:A