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
The record of the past half century has established, I think, the two general principles about human disease. First, it is neces
The record of the past half century has established, I think, the two general principles about human disease. First, it is neces
admin
2014-04-23
56
问题
The record of the past half century has established, I think, the two general principles about human disease. First, it is necessary to know a great deal about underlying mechanisms before one can really act effectively; one had to know that the pneumococcus (肺炎球菌) causes lobar pneumonia (球形肺炎) before one could begin thinking about antibiotics.
Second, for every disease there is a single key mechanism that dominates all the others. If one can find it, and think one’s way around it, one can control the disorder. This generalization is harder to prove and arguable—it is more like a strong hunch (直觉) than a scientific assertion— but I believe that the record thus far tends to support it. The most complicated, multicell, multi-tissue, and multiorgan diseases I know are tertiary syphilis, chronic tuberculosis, and pernicious anemia. In each, there are at least five major organs and tissues involved, and each appears to be affected by a variety of environmental influences. Before they came under scientific appraisal, each was what we now call a "multifactorial disease. " And yet, When all the necessary facts were in it was clear that by simply switching off one thing—the spirochete, the tubercle bacillus, or a single vitamin deficiency—the whole array of disordered and seemingly unrelated pathological mechanisms could be switched off, at once.
The author uses the example of lobar pneumonia to show that________.
选项
A、understanding the cause of a disease precedes curing it
B、the record of the past half century is one of medical progress
C、antibiotics let to an understanding of underlying disease mechanisms
D、many diseases are now called multifactorial
答案
A
解析
文中第一段第二句是个并列句,两个分句都含有“before”一词。第一个分句阐明第一条普遍原则,第二个分句进行了进一步的举例说明,即“人们在考虑使用抗生素之前,必须弄清肺炎球菌是引起球形肺炎的原因”。因此正确答案为A。
转载请注明原文地址:https://kaotiyun.com/show/lzWO777K
0
在职攻硕英语联考
相关试题推荐
Ifbookshadneverbeendiscovered,manwouldhavefoundsomeotherwayofrecordinghiscommunication.Butthen,forourconsid
Peoplearewaitingfor______ofwhetherthemanisinnocentornot.
InMicrosoft’slatestattempttoreachouttobloggers,thecompanyrecentlygaveawayexpensivelaptopsloaded【C1】______itsnew
CantheInternethelppatientsjumpthelineatthedoctor’soffice?TheSiliconValleyEmployersForum,asophisticatedgroupo
Inpolitics,inthecourts,evenontheubiquitousTVtalkshows,itisgoodformtopickanintellectualfight.Peopleattache
Ifyoucallthe911emergencynumber,theywill______firemen,policemen,andparamedicsimmediately.
HewasamemberoftheHillary______thatconqueredMountEverest.
Hebecameawarethathehadlosthisaudiencesincehehadnotbeenabletotalk_________.
Thepracticeofcapitalpunishmentisasoldasgovernmentitself.Formostofhistory,ithasnotbeenconsideredcontroversial
Thepracticeofcapitalpunishmentisasoldasgovernmentitself.Formostofhistory,ithasnotbeenconsideredcontroversial
随机试题
海损的分类。
钢材集团总公司——3个科长的表现钢材集团总公司下有8个分公司。其中第一、第二、第三分公司是集团中规模最大的分公司。张、王、李三人分别任第一、第二、第三分公司的业务科长。今年比利时召开全球钢材交易大会,此次会议对集团未来的发展和市场定位非常重要。集
以下关于喹诺酮类的构效关系不正确的有
A、神志清楚,两眼灵活B、本已意识不清,突然精神转“佳”C、登高而歌,弃衣而走D、表情淡漠,闷闷不乐,哭笑无常E、循衣摸床,撮空理线癫病多表现为
异位妊娠最常见的着床部位是
五四运动后,许多追求真理、追求进步的人们开始用新的眼光看中国、看世界,从对各种社会思潮、政治主张和政治力量的________中认真思考,逐步看到西方的种种社会_______,开始怀疑资产阶级共和国的救国方案。依次填入划横线部分最恰当的一项是(
国际贸易中解决争端的方式有()。
党对公安工作的垂直领导,就是要求公安机关自觉地接受党中央制定的路线、方针、政策的领导,同时也应自觉接受党中央和各级党委对公安机关实际工作的直接领导。( )
人民法院接到行政机关强制执行的申请,应当在()内受理。
Althoughcosmeticsurgery(andnon-surgicallycosmetic(1)______procedures,suchasBotoxinjection
最新回复
(
0
)