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
外语
In malaria-infested areas, many children tend to suffer several bouts of malaria before becoming immune to the disease. Clearly,
In malaria-infested areas, many children tend to suffer several bouts of malaria before becoming immune to the disease. Clearly,
admin
2014-10-21
32
问题
In malaria-infested areas, many children tend to suffer several bouts of malaria before becoming immune to the disease. Clearly, what must be happening is that those children’s immune systems are only weakly stimulated by any single exposure to the malaria parasite and need to be challenged several times to produce an effective immune response. Which of the following, if true, most seriously undermines the explanatory hypothesis?
选项
A、Immediately after a child has suffered a bout of malaria, the child’ s caregivers tend to go to great lengths in taking precautions to prevent another infection, but this level of attention is not sustained.
B、Malaria is spread from person to person by mosquitoes, and mosquitoes have become increasingly resistant to the pesticides used to control them.
C、A certain gene, if inherited by children from only one of their parents, can render those children largely immune to infection with malaria.
D、Antimalaria vaccines, of which several are in development, are all designed to work by stimulating the body’s immune system.
E、There are several distinct strains of malaria, and the body’s immune response to any one of them does not protect it against the others.
答案
E
解析
本题比较简单,我们重点是去反对段落里的解释性假说,即孩子们通过暴露于疟原虫下并与之抗争数次可产生有效免疫反应。如果疟疾种类不止一种,而人们对其中一种的免疫反应并不能保护人体抵抗其他几种,正如(E)所说,那么孩子对疟疾产生免疫力可能还要借助于其他途径,所以(E)Wealken了解释性假说,所以(E)正确;(C)易误选,但(C)讨论的仅仅是特定的一组孩子,而未说明一般的孩子,因此错误。
转载请注明原文地址:https://jikaoti.com/ti/G9zYFFFM
本试题收录于:
GMAT VERBAL题库GMAT分类
0
GMAT VERBAL
GMAT
相关试题推荐
Don’trisk______thejobwhichsomanypeoplewant.
SpeakerA:DoyouthinkIcouldborrowyourcartogogroceryshopping?Thesupermarketsoutsidethecityaresomuchcheaperth
Hepassedtheexamination______thesatisfactionofhisparents.
Who______thiscountry,thepeopleorthepresident?
SpeakerA:You’dbettertaketheumbrellawithyou.Itlookslikeit’sgoingtorain.SpeakerB:Thankyou______.
Themanmoved______forwardandlookedovertheedge,shrinkinghisshoulders.
Pleasenotedownthistelephonenumber______youmeetwithanyemergencies.
InShanghai,agrowingnumberofforeign-fundedbanksarelookingforlocalpeopletofillexecutivepositions(行政主管的岗位)ratherth
AccordingtotheAmericanfederalgovernment,residentsofHawaiihavethelongestlife________.
ResearchersatCornellUniversityhavedemonstratedthathomingpigeonscansensechangesintheearth’smagneticfield,seelig
随机试题
政企分开:
茶艺表演中的民俗风情也是茶艺的文化内涵之一,下列民族与特色茶俗搭配有误的是
男性,31岁,胸部外伤后4小时。体格检查:心率130次/min,血压11/7.5kPa,伤侧胸腔穿刺抽出血液,静止后凝固。红细胞计数和血红蛋白含量逐渐下降。此时应采取最主要的治疗方法是
某企业准备5年后进行设备更新,到时所需资金估计为600万一,若存款利率为5%,从现在开始每年年末均等额存款,则每年应存款()。[己知:(A/F,5%,5)=0.18097]
X、Y分别表示两种不同类型借款人的违约损失,其协方差为0.08,X的标准差为0.90,Y的标准差为0.70,则其相关系数为()
下列关于股票风险的说法中,正确的有()。
体现我国教学的根本方向和特点的教学原则是()。
EPQ的分量表有()
下面出现的所有文件都必须保存在考生文件夹下。(1)将文中所有错词“气车”替换为“汽车”。将标题段(“2009年中国车市中期总结(上)”)文字设置为20磅红色仿宋_GB2312、加粗、居中,并添加蓝色双波浪下划线。(2)设
Theconsultant______hisbusinessifhehadadvertised.
最新回复
(
0
)