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
At the turn of the 20th century, Dutch physician Christiaan Eijkman showed that disease can be caused not only by microorganism
At the turn of the 20th century, Dutch physician Christiaan Eijkman showed that disease can be caused not only by microorganism
admin
2019-08-16
30
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.
【M2】
选项
答案
with—without
解析
语篇错误。该段落主要描述了20世纪医药学的发展,属于积极的含义。所以要显示出世界上第一个杀菌剂的优势,则应该表明这是一种能杀死某些特殊细菌而又“不杀死”病人细胞的化学药品。若为with,则无法体现其先进性,故将with改为without。
转载请注明原文地址:https://kaotiyun.com/show/TDbK777K
0
专业英语八级
相关试题推荐
Fordecades,thetelevisionwastheflagshipofanyconsumer-electronicsproductline-up.Inallthegadgetsinthehome,【M1】___
Fordecades,thetelevisionwastheflagshipofanyconsumer-electronicsproductline-up.Inallthegadgetsinthehome,【M1】___
Fordecades,thetelevisionwastheflagshipofanyconsumer-electronicsproductline-up.Inallthegadgetsinthehome,【M1】___
Fordecades,thetelevisionwastheflagshipofanyconsumer-electronicsproductline-up.Inallthegadgetsinthehome,【M1】___
Poetrydoesn’tmattertomostpeople.Onehastowonderifpoetryhasanyplaceinthe21stcentury,whenmusicvideosandsat
Poetrydoesn’tmattertomostpeople.Onehastowonderifpoetryhasanyplaceinthe21stcentury,whenmusicvideosandsat
Therearemoredrugsdispensedforpainthanforanyotherdiseaseonthisplanet.Drugcompaniesenjoyearninghugeprofitsf
Therearemoredrugsdispensedforpainthanforanyotherdiseaseonthisplanet.Drugcompaniesenjoyearninghugeprofitsf
Therearemoredrugsdispensedforpainthanforanyotherdiseaseonthisplanet.Drugcompaniesenjoyearninghugeprofitsf
Issuesconcerninghumanlearningareamongthecriticaltopicsineducationalpsychology,childdevelopment,andcognitivescie
随机试题
样品应同一生产基地、同一品种、同一包装日期为一个检验批次。
有关卵巢周期变化,下述哪项不对()
建立工程进度报告制度及信息沟通网络属于进度控制措施的管理措施。()
一平面简谐波在弹性媒质中传播,在某一瞬间,某质元正处于其平衡位置,此时它的()。
施工单位应当对进入施工现场的________进行查验,不符合施工图设计文件要求的,不得使用。()
_________,免征进口关税,进口环节增值税照章征收。
甲公司为一家建筑公司,某日承建了一项大型的玻璃幕墙安装工程,为了顺利完成工程,2010年1月25日,甲公司与乙租赁公司签订了经营租赁合同,合同约定:甲公司从乙公司处租赁一台大型的吊装设备,租赁期间为2010年2月1日~2010年5月1日,租金为10万元,乙
小红是位聋哑人。结婚十多年来,家里的经济状况还可以,但她一直忍受丈夫的家庭暴力,一次丈夫酗酒后把她打得鼻青脸肿,小红越想越觉得这样的生活没希望,等丈夫熟睡后,将丈夫杀死并投案自首。针对该个案,关于法律援助的说法,正确的选项是()。
简单无向图的邻接矩阵是对称的,可以对其进行压缩存储。若无向图G有n个结点,其邻接矩阵为A[1..n,1..n],且压缩存储在B[1..k],则k的值至少为()。
设A=,已知A有三个线性无关的特征向量且λ=2为矩阵A的二重特征值,求可逆矩阵P,使得P-1AP为对角矩阵.
最新回复
(
0
)