问题 单项选择题


以下提供若干组考试题,每组考试题共用在考试题前列出的A、B、C、D、E五个备选答案。请从中选择一个与问题关系最密切的答案。

真核rRNA的转录后加工

A.切除部分肽链
B.3’-末端加-CCA
C.3’-末端加polyA
D.45S rRNA的剪切
E.亚单位的聚合

答案

参考答案:D

阅读理解
People usually don't like mice.      one mouse has been one of the most famous film stars in the world. That is the well-known Mickey Mouse. One night a man       Walt Disney was drawing when he heard a strange sound. The sound came        the waste-basket. Walt went over and saw a family of        eating pieces of bread in it. For many nights, they played there. Walt began to       them. Walt liked one little mouse better than        mice. This little mice gave him some new ideas for his       . He started to draw      . But in the picture, it       more like a funny man than a mouse. Walt wanted to make this little mouse        in his pictures and soon it was able to speak.       he named it Mickey Mouse. People laughed when they saw the film because they          seeing it. Soon Mickey became very popular with    old and young people. Children loved their lovely friend because it brought joy and pleasure to      . Perhaps this is why people love Mickey Mouse though(尽管) they       like real mice.
小题1:
A.BecauseB.AndC.ButD.Or
小题2:
A.calledB.is calledC.callsD.call
小题3:
A.atB.toC.intoD.from
小题4:
A.miceB.mouseC.dogsD.c ats
小题5:
A.likeB.hateC.killD.catch
小题6:
A.othersB.the othersC.otherD.the other
小题7:
A.singingB.drawingC.swimmingD.driving
小题8:
A.breadB.miceC.animalsD.ideas
小题9:
A.sawB.lookedC.lookD.see
小题10:
A.jumpB.danceC.runD.talk
小题11:
A.LateB.LaterC.BeforeD.After
小题12:
A.hatedB.dislikedC.enjoyedD.enjoys
小题13:
A.alsoB.bothC.allD.only
小题14:
A.usB.youC.himD.them
小题15:
A.can’tB.don’tC./D.also
单项选择题 案例分析题