题目内容

如果a，b，c成等比数列，那么ax2+2bx+c=0的根的情况是（） (A)有二相等实根 (B)有二不等实根 (C)无实根 (D)无法确定

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设函数f(x)=x2+(m-3)x+3是偶函数，则m=（） (A)-3 (B)1 (C)3 (D)5

Why did Bond stop in the doorway to theunderwear shop？

A. To see who Was followinghim．
B. To look at the man in thefun suit．
C. To avoid the sunshine．
D. To look at the underwear．

根据短文，回答下列各题。 Most of you graduating today will be employees all your working life，working for some．body else and for a paycheck．And SO will most，_21_ not all，of the thousands of other youngAmericans graduating this year in all the other school and colleges across the country． _22_has become a society of employees．A hundred years or so ago only one 23 everyfive Americans all work was employed,i．e．，worked for somebody,else．Today only 20％of A．mericans are not employed but working for themselves．And _24_ fifty years a90“being em—ployed”meant_25_as a factory laborer or as a farm hand，the employee of today is increasing—ly a middle-class person with a _26_ formal education，holding a professional or managementjob requiting_27_and technical skills．_28_，two things have characterized American socie．ty during these last fifty years：the middle and upper classes have become employees；and middle—class and_29_employees have been the fastest growing groups in our working population．grow-ing SO fast that the industrial worker，that _30_ child of the Industrial Revolution．has beenlosing in numerical importance _31_the expansion of industrial production． This is one of the most profound social changes any country _32_．It is，however，a per-haps _33_ 9reater change for the individual young man_34_to start．Whatever he does，inau__35，he will do it as an employee；wherever he aims，he will have to try to reach it_36_being an employee． As an employee you work with and through other people．This means that your success asan employee will _37_ 0n your ability to communicate with people and to present your ownthoughts and ideas to them _38_ they will both understand what you are driving _39_ and．be persuaded．The letter，the report or memorandum(记录)，the _40_ spoken“presentation”to a committee are basic tools of the employee．第21题答案为：

A. but
B. if
C. nearly
D. fortunately

I knew more English，I_______for this position

A. would apply
B. will apply
C. may have applied
D. will have applied