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
2014-10-27
89
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/m5K4777K
0
考研英语一
相关试题推荐
Cultureshockmightbecalledan【C1】______diseaseofpeoplewhohavebeensuddenly【C2】______abroad.Likemostailments,ithasi
Cultureshockmightbecalledan【C1】______diseaseofpeoplewhohavebeensuddenly【C2】______abroad.Likemostailments,ithasi
Itdoesn’tmatterwhichroomafamilychoosesto【C1】______in.It【C2】______beafavoritecomerofthekitchen,orawoodpanelled
Itdoesn’tmatterwhichroomafamilychoosesto【C1】______in.It【C2】______beafavoritecomerofthekitchen,orawoodpanelled
______totellusthattheinterestoftheindividualshouldbesubordinatetothatofthecollective?
Accordingtopsychoanalysis,aperson’sattentionisattracted______bytheintensityofdifferentsignals______bytheircontext
"Cleverness"ChargedBarbedWireNetCurrentGroup,aGermantown-basedtechnologyfirm,hastakenoveranordinarylookingh
TeachtheKidHowtoTalktoImproveSpeechChildrenwillhavelessonsonhowtospeakproperEnglishinformalsettings,un
ThePhotographeroftheBlindManBlindphotography:theveryconceptsoundsodd.Butastrikingexhibitionofphotographsi
Writeapostertoyourschoolmates,informingthemofanewbooktobereleased.Youshouldwriteabout100wordsonANSWERSHE
随机试题
不属于火邪的性质及致病特点有:()
经期卫生哪项不对
在图4—2—2所示机构中,杆O1A∥O2B,杆O2C∥O3D,且O1A=20cm,O2C=40cm,若杆AO1以角速度ω=3rad/s匀速转动,则CD杆上任意点M的速度及加速度大小为()。[2011年真题]
下面关于控制网的叙述正确的是()。
我国集装箱运输系统的建设重点是()。
根据《建筑法》,建设单位因故不能在施工许可证规定的期限内开工的,应当向发证机关申请延期,申请延期的次数最多为()次。
库存现金限额由开户银行根据开户单位()日常零星开支所需要的现金核定。
下列各项不属于《证券法》授予证券交易所的监管权力的是()。
在影响操作风险的因素中,交易/定价错误是指()。
案例:我是一名新入职的体育老师,在一次七年级的短跑蹲踞式起跑新授课教学中,我按照起跑的竞赛技术要求进行教学,效果却不尽人意。课的基本部分阶段,在调整好队形后,我详细地讲解、示范了“各就位”(蹲立双手支撑)、“预备”(抬起臀部重心前移)、
最新回复
(
0
)