问题 单项选择题

五位作家依次坐成一排为同学们签名售书,已知每位同学都恰好找座位相邻的三位作家签名.一共有22个同学同时找第二位和第四位签名,并且第三位一共签名38次,第一位比第五位多签名6次,那么第二位一共签名( )。

A.28次
B.54次
C.33次
D.42次

答案

参考答案:C

解析: 每个同学可能选择前三位、中间三位或后三位作家签名,同时找第二位和第四位签名的同学只能选择找中间三位签名。设选择选择前三位、后三位的同学有x位、y位,得到x+22+y=38,x-y=6,x=11,y=5,则选择第二位作家签名的有11+22=33。

多项选择题
完形填空


A group of graduates got together to visit their old university professor.
The conversation soon turned into complaints about  26  in work and life. To offer his guests coffee, the  27 went to the kitchen and returned with a large pot of coffee and a variety of  28  — porcelain, plastic, glass, crystal, some  29  , some expensive, some delicate — telling them to help themselves to the  30 .
When all the students  31  a cup of coffee in hand, the professor said, "If you have  32  , all the nice-looking expensive cups have been taken up,  33 the plain and cheap ones. While it is  34  for you to want only the best for yourselves, that is the  35 of your problems and stress. "
"Be assured that the cup itself adds no  36  to the coffee. In most cases it is just more expensive and in some cases even  37 what we drink. "
"What all of you really want is coffee,  38  the cup, but you  39  went for the best cups … And then you began  40 each other's cups. "
"Now consider  41 : Life is the coffee; the jobs, money and position in society are the cups. They are just tools to hold and contain  42 , and the type of cup we have does not determine, nor  43 the quality of life we live. Sometimes, by concentrating only on the cup, we  44 to enjoy the coffee. Fully appreciate the coffee, not the cups! Don't let the cups   45 you ... enjoy the coffee instead. "
小题1:
A.stressB.progressC.conditionD.pride
小题2:
A.advisorB.professorC.monitorD.graduate
小题3:
A.glassesB.bowlsC.traysD.cups
小题4:
A.plain-lookingB.beautifulC.modernD.nice-looking
小题5:
A.potB.sugarC.milkD.coffee
小题6:
A.madeB.hadC.cookedD.served
小题7:
A.talkedB.discussedC.noticedD.decided
小题8:
A.leaving behindB.falling about
C.leaving aboutD.falling behind
小题9:
A.strangeB.wonderfulC.normalD.important
小题10:
A.sourceB.purposeC.doubtD.result
小题11:
A.priceB.qualityC.sweetD.color
小题12:
A.provesB.tastesC.hidesD.steals
小题13:
A.more thanB.less thanC.other thanD.rather than
小题14:
A.consciouslyB.wiselyC.shylyD.carelessly
小题15:
A.showingB.eyeingC.exchangingD.praising
小题16:
A.itB.thatC.thisD.one
小题17:
A.jobsB.moneyC.positionD.life
小题18:
A.changeB.increaseC.discoverD.lower
小题19:
A.tryB.manageC.failD.plan
小题20:
A.envyB.driveC.supportD.assess