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
How many people become infected with malaria each year?
How many people become infected with malaria each year?
admin
2010-02-07
20
问题
How many people become infected with malaria each year?
Researchers in the United States are exploring a possible way to control malaria. They are developing insects resistant to the disease.
More than three million people become infected with malaria each year. The disease kills at least one million people every year. Malaria is found in Africa, Asia, the Middle East and South America.
Malaria parasites enter a person’ s blood through the bite of a very small insect--the mosquito. The malaria parasites travel to the liver. The organisms grow and divide there. After a week or two, the parasites invade red blood cells and reproduce thousands of times. They cause a person’ s body temperature to rise. They also may destroy major organs. People with malaria may suffer kidney failure or loss of red blood cells.
People die from malaria because they are not treated or treatment is delayed. Different drugs can prevent the parasites from developing in the body. But experts still say the best way to prevent the disease is not to be bitten by a mosquito.
That could change in the future. Research scientists at The Johns Hopkins University have created mosquitoes that cannot spread the malaria parasites. Computer studies show that such insects are needed to replace mosquitoes in the wild if malaria control is to succeed. The researchers reported their findings in the Proceedings of the National Academy of Sciences.
选项
A、The malaria parasites will grow and divide in the kidney.
B、The red blood cells will then be invaded by the parasites which reproduce thousands of times later.
C、The parasites cause a person’ s body temperature to rise.
D、People with malaria may suffer kidney failure or loss of red blood cells.
答案
A
解析
转载请注明原文地址:https://jikaoti.com/ti/luBsFFFM
本试题收录于:
公共英语四级笔试题库公共英语(PETS)分类
0
公共英语四级笔试
公共英语(PETS)
相关试题推荐
Somepeopleclaimthattelevisionisgoodforchildrenbecauseitgetschildrenclevererbywatchingit,whileothersthinkthat
YouwillhearaspeechbyBobChase,PresidentoftheNationalEducationAssociation(NEA)totheAmericanAssociationofColleges
Millionsofman-hoursarelosttoindustrythroughemployeessufferingbackacheorstraincausedbyoperatingpoorlydesignedma
Itisoftensaidthatthesubjectstaughtinschoolsaretooacademicinorientationandthatitwouldbemoreusefulforchildr
Whethertryingtolivewiththedepressingspectacleofdroughtorbattlingrampagingfloodsorsufferingwithadebilitatingdi
Whenwillshowersreachsouth-westEnglandandthesoutherncoastofWales?
classroom
WhatisNOTtrueaboutthefirstOlympics?
Whenwillshowersreachsouth-westEnglandandthesoutherncoastofWales?
UNSecretary-GeneralKofiAnnanvisitedthetroubledDarfurregionofwesternSudanThursdaytoconsiderwaystoendthehumanit
随机试题
隐性课程
影响牙周疾病流行的最主要因素是
()可以实现在生成报表时,由软件根据其来完成合法性检查。
根据家庭生产理论,时间的使用不包括()。
A、 B、 C、 D、 B
如果想在运行表单时,向TEXT2中输入字符,回显字符显示的是“*”号,则可以在Form1的Init事件中加入语句()。
在关系运算中,投影运算的含义是______。
AsApplepreparestoreportwhat(analystsproject)maybethecompany’sfirstyear-over-yearquarterlyearningsdeclineinade
Noneofusknewhowthechangehadcome______.
A、Theywouldhaveenjoyedahappierlife.B、Theywouldhavehaddifficultybeingpromoted.C、Theywouldhavebeenshiftedaround
最新回复
(
0
)