题目内容

How can a business help improve its employees' experience in using IT?

A. By designing systems that suit their needs.
By ensuring that their mental health is sound.
C. By adjusting their work to suit the IT system.
D. By offering them regular in-service training.

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Directions: There are 20 blanks in the following passage. For each blank there are four choices marked A, B, C and D. You should choose the ONE that best fits into the passage.There are two factors which determine an individual’s intelligence. The first is the sort of brain he is born 1) ___ .Human brains 2)considerably, some being more capable than others. But no matter how good a brain he has to begin with, an 3 )_ will have a low order of intelligence4)_he has opportunities to learn. So the second factoris what 5)to the individual in the sort of environment in which he is brought6) . If an individual is handicapped7)_ , it is likely that his brainwill8)to develop and he will never 9)__the level of intelligence of which he is 10 )_ .The importance of environment in determining an individual’s intelligence can be 11)_ by the casehistory of the identical twins, Peter and John. When the twins werethree months old, their parents died, and they were placed in12)_foster （寄养）homes. Peter was13)____by parents of low intelligence in an14)_community with poor educational15) . John, however was educated in the home of well-to-do parents who had been to college. This environmental16 ) continued until the twins were 17) their late teens,18)_they were given tests to 19)_ their intelligence. John’s I.Q.(智商) was 125, twenty-five points higher than the20)______and fully forty points higher than his identical brother.1.A.forB.byC.withD.in2.A.changeB.differC.getD.grow3.A.individualB.personC.brainD.intellectual4.A.ifB.thoughC. asD.unless5.A.refersB.happensC.appliesD.concerns6.A.aboutB.upC.forwardD.forth7.A.relativelyB.intelligently C.relevantlyD.environmentally8.A.failB.helpC.manageD.stop9.A.surpriseB.attainC.failD.have10.A.ableB.capableC.availableD.acceptable11.A.demonstratedB.denied C.neglectedD.ignored12.A.separateB.similarC.remoteD.individual13.A. fearedB.broughtC.raisedD.cultivated14.A.omittedB.isolatedC.enclosedD.occupied15.A. capacitiesB.opportunitiesC. possibilitiesD.responsibilities16.A.exceptionB.divisionC.differenceD.alteration17.A.inB.onC.atD.for18.A.whileB.sinceC.whenD.because19.A.estimateB.countC.decideD.measure20. A.averageB.commonC.usualD.ordinary

下列属于C语言中合法标识符的是（）

A. ex-1
B. _cook
C. 951a
D. io$s

C语言中，下列说法正确的是( )。

A. 不能使用do-while语句构成的循环
B. do-while语句构成的循环必须用 break语句才能退出
C. do-while语句构成的循环，当while语句中的表达式值为非零时结束循环
D. do-while语句构成的循环，当while语句中的表达式值为零时结束循环

若有定义int a[4]={1,2,3};请问a[a[a[0]]]的值是( )。

A. 1
B. 2
C. 3
D. 4