首页
登录
职称英语
At the turn of the 20th century, Dutch physician Christiaan Eijkman showed
At the turn of the 20th century, Dutch physician Christiaan Eijkman showed
游客
2023-11-26
36
管理
问题
At the turn of the 20th century, Dutch physician Christiaan
Eijkman showed that disease can be caused not only by
microorganisms but by a dietary efficiency of certain substances【M1】______
now called vitamins. In 1909 German bacteriologist Paul Ehrlich
introduced the world’s first bactericide, a chemical designed to kill
specific kinds of bacteria with killing the patient’s cells as well.【M2】______
Following the discovery of penicillin in 1928 by British
bacteriologist Sir Alexander Fleming, antibiotics joined medicine’s
chemical armory, making the fight against bacterial infection
almost a routine matter. Antibiotics cannot act as viruses, but【M3】______
vaccines have been used to greatly effect to prevent some of the【M4】______
deadliest viral diseases. Smallpox, once a worldwide killer, was
completely eradicated by the late 1970s, and in the United States a【M5】______
number of polio cases dropped from 38,000 in the 1950s to less
than 10 a year by the 21st century.
By the middle of the 20th century scientists believed they
were well on the way to treating, preventing, or eradicating many
of the most deadly infectious diseases that plagued humankind for【M6】______
centuries. And by the 1980s the medical community’s confidence【M7】______
in its ability to control the infectious diseases had been shaken by【M8】______
the emergency of new types of disease-causing microorganisms.【M9】______
New cases of tuberculosis developed, caused by bacteria strains
that were resistant to antibiotics. New, deadly infections on which【M10】______
there was no known cure also appeared, including the viruses that
cause hemorrhagic fever and the human immunodeficiency virus
(HTV), the cause of acquired immunodeficiency syndrome. [br] 【M7】
选项
答案
And一But
解析
语篇错误。本文第一段讨论了20世纪医药学的发展,第二段开始提到科学家们相信自己在疾病研制方面的发展,而下文紧接着提到医学界的信心受到动摇,并且列举了几种尚无法攻克的新型疾病,可以推断出此处应该表转折,所以将And改为But,表示转折含义。
转载请注明原文地址:https://tihaiku.com/zcyy/3222086.html
相关试题推荐
Youngpeoplearefacinganuncertainfuture.Asthe21stcenturydawned,the
Youngpeoplearefacinganuncertainfuture.Asthe21stcenturydawned,the
Youngpeoplearefacinganuncertainfuture.Asthe21stcenturydawned,the
Youngpeoplearefacinganuncertainfuture.Asthe21stcenturydawned,the
Youngpeoplearefacinganuncertainfuture.Asthe21stcenturydawned,the
TheSurvivalofEnglishI.410CEtothemid-eighthcentury—KingVortigernin
TheSurvivalofEnglishI.410CEtothemid-eighthcentury—KingVortigernin
TheSurvivalofEnglishI.410CEtothemid-eighthcentury—KingVortigernin
TheSurvivalofEnglishI.410CEtothemid-eighthcentury—KingVortigernin
TheSurvivalofEnglishI.410CEtothemid-eighthcentury—KingVortigernin
随机试题
PASSAGETWOImpractical.根据题干关键词定位至文章第三段。该段倒数第二句指出,20世纪70年代,在通货膨胀、工作机会少的经济情况下,许多学生
HowSledDogsWorkThey’rephysical
Friendsplayanimportantroleinourlives,andalthoughwemaytakefriend
视网膜前出血是指出血在A.视网膜内核层 B.内界膜下 C.视网膜内界膜与玻璃
理财产品风险评级结果应当以风险等级体现,由低到高至少包括()个等级,并可根据实
阅读关于“营造地表形态的力量”的图文资料,按要求完成教学设计任务。 材料一《普
A.溶解扩散 B.限制扩散(微孔途径) C.主动转运 D.易化扩散 E.
2012年5月,某零售企业的部分陶瓷供应商陆续收到来自其零售企业的审核函。函中
简述现代企业人力资源管理各个历史发展阶段的特点。
利润表各项目均需填列“本期金额”和“上期金额”两栏。其中“上期金额”栏内各项数字
最新回复
(
0
)