首页
登录
职称英语
What is the main idea of the news item? [originaltext] The battle against mal
What is the main idea of the news item? [originaltext] The battle against mal
游客
2023-12-09
62
管理
问题
What is the main idea of the news item?
The battle against malaria continues to challenge doctors, scientists, and public health officials. Now, a team of British and American scientists have developed a novel and promising approach to malaria control.
Malaria kills about a million victims each year, mostly children in Africa, and almost half the world’s population is at risk.
The malaria parasite is carried from victim to victim by mosquitoes, which are increasingly developing resistance to the insecticides used to kill them.
As an alternative to chemicals, University of Maryland professor Raymond St. Leger and his colleagues have been working on a genetically-engineered fungus to control malaria-carrying mosquitoes.
One possibility they considered was using the fungus to kill the mosquito, the way insecticides do. The result is a fungus that kills the parasite directly. And, the genetic modification of the fungus could be adjusted to counter resistance in the malaria parasite as it evolves.
It may be a couple of years before this modified fungus is approved for use. But it wouldn’ t be the first fungus based product on the market. A similar modified fungus is already in use against locusts in Africa, Australia and China, and at a cost comparable to chemical insecticides.
选项
A、Advances in chemical insecticides.
B、Genetically-modified fungus kills malaria parasite.
C、A novel and promising approach to mosquito control.
D、New challenges for doctors, scientists, and public health officials.
答案
B
解析
转载请注明原文地址:http://tihaiku.com/zcyy/3258353.html
相关试题推荐
Whatisthemainideaofthenewsitem?[originaltext]TheEuropeanUnionis
WhatisMr.Sarkozy’spurposeofvisitingWestminsterAbby?[br][originaltext]
WhatisMr.Sarkozy’spurposeofvisitingWestminsterAbby?[originaltext]Mr
WhichofthefollowingisTRUEabouttheexplosion?[originaltext]Firecracke
ThefollowingpeoplemetMexicanPresidentEXCEPT[originaltext]MexicanPres
Tensionshaveflaredbecause[originaltext]Thelatestattack,onanEvangeli
Enemiesthemostobstinateandcourageouscan’tholdoutagainststarvation;
Enemiesthemostobstinateandcourageouscan’tholdoutagainststarvation;
Enemiesthemostobstinateandcourageouscan’tholdoutagainststarvation;
Enemiesthemostobstinateandcourageouscan’tholdoutagainststarvation;
随机试题
Elephantsdon’tforget—atleast,femaleelephantsdon’t.Elephantfamiliesa
Thedevelopmentoftoothpastebeganaslongagoas3000/5000BCintheancien
Theterm"LearningDisabilities"meansadisorderinoneormoreofthebasi
Acommonquestionthatpeopleaskastorywriteriswhetherornothehasexperi
A、theArtiepopulationsB、theNorthAmericansC、thenortheasternSiberiansD、the
酶催化活性浓度测定的下列表述错误的是A.可测定产物生成量 B.可测定底物消耗量
A.肾上腺皮质束状带B.肾上腺皮质网状带C.肾上腺皮质球状带D.肾上腺髓质E.垂
共用题干 黄先生在北京购买了一套价值100万元的普通住宅。根据案例回答60~6
根据形态理论,股价移动的规律是完全按照()决定的。A:多空双方力量对比大小B:
专利权人自专利权被授予之日满( )年后,且自提出专利申请之日起满( )年,无
最新回复
(
0
)