问题 单项选择题

法医学上过去做个体识别和亲子鉴定,通常采用血型、血清蛋白型、红细胞酶型和白细胞膜抗原型等方法,所有这些方法无论是单独使用还是联合应用对个体识别的能力都不够,只能排除而无法达到同一认定。近年来发展起来一种新技术,这种技术克服了以上缺点,在法医鉴定中得到广泛的应用,这种技术是( )。

A.单克隆抗体技术
B.克隆技术
C.DNA指纹技术
D.都不对

答案

参考答案:C

解析: 用于亲子鉴定的方法有许多种,DNA鉴定是其中技术含量最高且准确性最高的一种方法。除了用于亲子鉴定,DNA鉴定在发达国家还广泛用于其他的身份识别,具有不可替代的精确性。故本题正确答案为C。

单项选择题
完形填空
Even after many years, she still has not forgotten the last day her whole class got together to say goodbye to their dearest schooldays. Those   36  memories always become vivid every time nostalgia (怀旧) drives her feet towards the old   37 , only to find a big old tree with all of their names carved deep into the   38  and the new school houses.
Time has changed each fate beyond any 39  .The jolly "dwarf"(快乐的矮子) of the class has now turned into a    40   businessman. The shy, skinny "bookworm" is now a talented Ph. D. That naughty girl has   41  the well-known athlete and the class beauty a movie star. But she, a   42   addict, was driven by an inner force to put her pen aside and becomes a  43  instead.
Now, she is a teacher, yet she has to   44  learning numerous difficult lessons of life. The more she   45 , the better she understands the value of her teacher's  46  lesson. She has given her students the whole-hearted   47  and tenderness that she once received from her teacher who passed  48  years ago.
Now and then, she catches   49  of a warm look in the eyes of her students, which encourages her to   50  . She hopes to find herself again in her students: always listening carefully and appreciating each   51  . To her, that will be the noblest award she could  52  receive in her teaching years.
She tells herself to try her best to understand and take life at its deepest.   53  she hasn't enough teaching experience she will give her students the   54  that are not written in the lesson plans, as her teacher used to do. Her teacher's   55    "The giving of love is an education in itself" will be always in her mind.
小题1:
A.easyB.interestingC.unforgettableD.clear
小题2:
A.placeB.schoolC.townD.building
小题3:
A.topB.leafC.rootD.trunk
小题4:
A.expectationB.questionC.answerD.plan
小题5:
A.luckyB.successfulC.braveD.loyal
小题6:
A.becomeB.developedC.changedD.shown
小题7:
A.dramaB.filmC.literatureD.science
小题8:
A.writerB.businessmanC.headmasterD.teacher
小题9:
A.continueB.agreeC.supportD.expect
小题10:
A.hopesB.passesC.experiencesD.meets
小题11:
A.nextB.presentC.realD.last
小题12:
A.enthusiasmB.explanationC.pleasure D.present
小题13:
A.downB.outC.awayD.by
小题14:
A.eyeB.sightC.viewD.scene
小题15:
A.set outB.go throughC.carry onD.stay up
小题16:
A.situationB.personC.environmentD.lesson
小题17:
A.stillB.everC.evenD.yet
小题18:
A.ThoughB.WhenC.BeforeD.Until
小题19:
A.contributions B.teachingsC.statements D.instructions
小题20:
A.talkingB.tellingC.speakingD.saying