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
Excerpt 1 The process of vaccination allows the patient’ s body to develop immunity to the virus or disease so that, if it i
Excerpt 1 The process of vaccination allows the patient’ s body to develop immunity to the virus or disease so that, if it i
admin
2014-03-15
55
问题
Excerpt 1
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.
Excerpt 2
Scientists are hoping to eliminate malaria (疟疾) by developing a genetically modified mosquito that cannot transmit the disease. Malaria has long troubled the populations of South America, Africa, and Asia, where mosquito bites infect to 500 million people a year with this serous and sometimes fatal parasitic blood disease.For generations, scientists have been trying to eliminate malaria by developing new drugs and using pesticide (杀虫剂) to wipe out local mosquito populations. But these measures aren’ t working...and some scientists, like Greg Lanzaro, say that because of drug resistance and population changes, malaria is actually more prevalent now than it was 20 years ago.
Excerpt 3
Gene therapy and gene-based drugs are two ways we could benefit from our growing mastery of genetic science. But there will be others as well. Here is one of the remarkable therapies on the cutting edge of genetic research that could make their way into mainstream medicine in the coming years.
Excerpt 4
For years, pediatricians didn’ t worry much about treating hypertension in their patients. After all, kids grow so fast, it’s hard keeping up with their shoe size, let alone their blood pressure. Sure, hypertension in adults places them at greater risk of heart attack and stroke. But nobody likes the idea of starting youngsters on blood-pressure medicine they could wind up taking the rest of their lives. Who knows what previously unheard-of side effects could crop up after five or six decades of daily use? Excerpt 5
From the health point of view we are living in a marvelous age. We are immunised from birth against many of the most dangerous diseases. A large number of once fatal illnesses can now be cured by modem drugs and surgery. It is almost certain that one day remedies will be found for the most stubborn remaining diseases.
Excerpt 6
Cardiologists have pioneered the world s first non-surgical bypass operation to turn a vein into an artery using a new technique to divert blood flow in a man with severe heart disease; the keyhole procedure, which avoids the extensive invasive surgery of a conventional bypass, will offer hope to tens of thousands of people at risk from heart attacks.
Coronary heart disease, where the arteries are progressively silted up with fatty deposits, is responsible in a major industrial country like Britain for more than 160, 000 deaths each year. Although major heart surgery is becoming commonplace, with more than 28, 000 bypass operations in the UK annually, it is traumatic for patients and involves a long recovery period.
One reason for malaria to be more widespread now is that_____.
选项
A、more people have moved to malaria-infected areas
B、mosquitoes have become resistant to pesticides
C、genetically modified mosquitoes still transmit the disease
D、mosquitoes bite as many as 500 million people a year
答案
B
解析
在Excerpt 2讲到,科学家希望使蚊子不能传播疾病来消除疟疾。后面讲到“because of drug resistance and population changes,malaria is actually more prevalent now than it was 20 years ago.”由于蚊子对药品的抗力和人口的变化,现在,疟疾实际上比二十年前更普遍。可见A项不符合文意,B项“蚊子对杀虫剂有抵抗力”正确。
转载请注明原文地址:https://kaotiyun.com/show/g0hi777K
0
在职申硕(同等学力)英语
相关试题推荐
AttheKyotoconferenceonglobalwarminginDecember1997,itbecameabundantlyclearhowcomplexithasbecometoworkoutint
Musiccomesinmanyforms;mostcountrieshaveastyleoftheirown.【C1】______theturnofthecenturywhenjazz(爵士乐)wasborn,Am
Technologyhas______thesharing,storageanddeliveryofinformation,thusmakingmoreinformationavailabletomorepeople.
ProfessorWutraveledandlecturedthroughoutthecountryto______educationandprofessionalskillssothatwomencouldentert
Sheshould______thosepresentatthemeetingtoarriveataclear-cutdecision.
Man:Noteverywomancoulddothethinglikeher.Sheisextraordinary.Woman:Yeah,sheis.ButI’llhavemymoments.Question:w
(Annoying)atthelongcheck-outlines,theshopperbegan(tosigh)loudly,taphis(foot),and(glance)athiswatch.
Man:Noteverywomancoulddothethinglikeher.Sheisextraordinary.Woman:Yeah,sheis.ButI’llhavemymoments.Question:W
Whydoescreamgobadfasterthanbutter?Someresearchersthinktheyhavetheanswer,anditcomesdowntothestructureofthe
A.Makeonepointpere-mail.B.Internale-mail.C.Specifytheresponseyouwant.D.Subjectlinesareheadlines.E.Beagood
随机试题
从事服装生产经营的外资企业甲公司,在中国广州设立了分支机构乙。以下关于甲公司与乙的说法正确的有哪些?()
下列关于需要的概念表述,正确的是()。
A.条件(1)充分,但条件(2)不充分。B.条件(2)充分,但条件(1)不充分。C.条件(1)和条件(2)单独都不充分,但条件(1)和条件(2)联合起来充分。D.条件(1)充分,条件(2)也充分。E.条件(1)和条件(2)单独都不充分,条件(1)和
教育法调整的基本法律关系包括()
目前,适合我国流行病学的定义是
药物产生副作用的剂量为()。
房屋面积的测算包括()的测算。
背景资料:某业主投资一建设工程项目,通过招标选择了一家施工单位,并与之签订了合同。合同约定,在施工过程中,若由于业主原因造成窝工,则机械的停工费用和人工窝工费按台班费和工日费的40%结算支付。该工程按如下计划进行。在计划执行过程中,出
以匿名方式通过几轮函询征求专家的意见,组织预测小组对每一轮的意见进行汇总整理后作为参考再发给各专家,供他们分析判断,以提出新的论证的决策方法是()。
能直接与CPU交换信息的存储器是_______。
最新回复
(
0
)