首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
考研
【F1】When a disease of epidemic proportions rips into the populace, scientists immediately get to work, trying to locate the sour
【F1】When a disease of epidemic proportions rips into the populace, scientists immediately get to work, trying to locate the sour
admin
2017-06-25
66
问题
【F1】
When a disease of epidemic proportions rips into the populace, scientists immediately get to work, trying to locate the source of the affliction and find ways to combat it.
Oftentimes, success is achieved, as medical science is able to isolate the parasite, germ or cell that causes the problem and finds ways to effectively kill or contain it. In the most serious of cases, in which the entire population of a region or country may be at grave risk, it is deemed necessary to protect the entire population through vaccination, so as to safeguard lives and ensure that the disease will not spread.
【F2】
The process of vaccination allows the patient’s body to develop immunity to the virus or disease so that, if it is encountered, one can ward it off naturally.
To accomplish this, a small weak or dead strain of the disease is actually injected into the patient in a controlled environment, so that his body’s immune system can learn to fight the invader properly. Information on how to penetrate the disease’ s defenses is transmitted to all elements of the patient’s immune system in a process that occurs naturally, in which genetic information is passed from cell to cell.【F3】
This makes sure that, should the patient later come into contact with the real problem, his body is well equipped and trained to deal with it, having already done so before.
There are dangers inherent in the process, however.【F4】
On occasion, even the weakened version of the disease contained in the vaccine proves too much for the body to handle, resulting in the immune system succumbing, and, therefore, the patient’s death.
【F5】
Such is the case of the smallpox vaccine, designed to eradicate the smallpox epidemic that nearly wiped out the entire Native American population and killed massive numbers of settlers.
Approximately 1 in 10, 000 people who receives the vaccine contract the smallpox disease from the vaccine itself and dies from it. Thus, if the entire population of the United States were to receive the Smallpox Vaccine today, 3, 000 Americans would be left dead.
Fortunately, the smallpox virus was considered eradicated in the early 1970’s, ending the mandatory vaccination of all babies in America. In the event of a re-introduction of the disease, however, mandatory vaccinations may resume, resulting in more unexpected deaths from vaccination. The process, which is truly a mixed blessing, may indeed hide some hidden curses.
【F3】
选项
答案
可以肯定,万一该病人以后碰上这类病毒,他的身体已全副武装并且训练有素,因为他已有经验了,所以足以应付这一现实问题。
解析
转载请注明原文地址:https://kaotiyun.com/show/iFbZ777K
0
考研英语一
相关试题推荐
HansenstartsbyarguingthattheicemeltingonandaroundGreenlandandAntarcticawill【B1】______risesinsealevelthatarem
Oneofthereallystartlingthingsabouttoday’sdecisionontheAffordableCareActisthatthewholebroccoliissue.Onemight
SherylSandbergisafeministiconforthetechworld.【B1】______SiliconValley,veryfewpeoplewouldhave【B2】______DavidGoldbe
WhilewesterngovernmentsworryoverthethreatofEbola,amorepervasivebutfarlessharmful【C1】______isspreadingthroughth
ReadthefollowingtextandanswerthequestionsbychoosingthemostsuitablesubheadingfromthelistA-Gforeachnumberedp
Inhisblog,whichislargelydedicatedtothekeepingofbees,JohnCarey,for30yearsaprofessorofEnglishliteratureatOx
Economics,asweknowit,isthesocialscienceconcernedwiththeproduction,distribution,exchange,andconsumptionofgoods
Scientistsandcriticalthinkersalwaysuselogicalreasoning.【F1】Logicallowsustoreasoncorrectly,butitisacomplextopi
Science,beingahumanactivity,isnotimmunetofashion.【F1】Forexample,oneofthefirstmathematicianstostudythesubject
Floatingonwater,ashipdisplacesanamountofwaterequaltotheweightoftheship.
随机试题
一般来说,元认知策略可分为()
论述俄国1861年农奴制改革的原因、内容和意义。(南京大学1999年世界近现代史真题;南开大学2002年世界近现代史真题;华中师范大学2002年世界近现代史真题;南京大学2003年世界史真题;华南师范大学2004年世界近现代史真题;南京大学2005年世界史
关于砌体基础施工技术,下列说法正确的有()。
一般代理指的是()
Fromthebeginningrivershaveplayedanimportantpartinthelifeofman.Manoftheearliesttimesusedtheriversasameans
诊断腹腔内实质性脏器损伤的主要依据是
【2012年第3题】题1~5:某小型企业拟新建检修车间、办公房屋和10/0.4kV车间变电所各一处。变电所设变压器一台,车间用电负荷及有关参数见下表。为了限制并联电容器回路的合闸涌流,拟在低压电容器组的电源侧设置串联电抗器,请问此时电抗率应该选择下列
在这个图形中共有多少个正方形?
《学记》
Thetraditionalappealoftheincometaxhascomefromitswideacceptance,asafairtax,closelyrelatedtoanindividual’sa
最新回复
(
0
)