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
Perhaps one of the best-known accidental discovery is Sir Alexander 【M1】______ Fleming’s discovery of penicillin. In 1922 Flemin
Perhaps one of the best-known accidental discovery is Sir Alexander 【M1】______ Fleming’s discovery of penicillin. In 1922 Flemin
admin
2016-03-15
37
问题
Perhaps one of the best-known accidental discovery is Sir Alexander 【M1】______
Fleming’s discovery of penicillin. In 1922 Fleming accidentally discovered
an antibiotic that killed bacteria but not white blood cells . While suffering 【M2】______
from a cold, Fleming made a culture from some of his own nasal secretions.
As he examined the culture dish, filling with yellow bacteria, a tear fell from his 【M3】______
eye into the dish. The next day when he examined the culture, he found a clear
space which the tear had fallen. His keen observation and inquisitiveness led 【M4】______
him to the correct conclusion: the tear contained a substance that caused rapid
destruction of the bacteria, but was harmless to human tissue. The antibiotic
in the tear he named lysozyme. It turned to be of little practical importance, 【M5】______
because the germs that lysozyme killed were relatively harmless, and this discovery 【M6】______
was an essential prelude to this of penicillin, as we shall see. 【M7】______
In 1928, Fleming was doing a research on influenza. While carrying out some 【M8】______
routine laboratory work that involved microscopic examination of cultures of
bacteria growth in petri dishes(flat glass dishes with covers), Fleming notice in 【M9】______
one dish an unusual clear area. Examination showed that the clear area surrounded
a spot where a bit of mould had fallen onto the dish, which had been left
uncovered. Remembering his experience with lysozyme, Fleming concluded that
the mould was producing something that was dead to the Staphylococcus bacteria 【M10】______
in the culture dish. Fleming isolated the mould and identified it as belonging to
the genus Penicillium, and he named the antibiotic substance it produced penicillin.
【M3】
选项
答案
filling--filled
解析
(此处两个逗号之间的内容修饰culture dish,fill“充满,装满”与之为被动关系,因此应当把filling改为filled。相当于定语从句which was filled with…)
转载请注明原文地址:https://kaotiyun.com/show/qAyK777K
本试题收录于:
A类竞赛(研究生)题库大学生英语竞赛(NECCS)分类
0
A类竞赛(研究生)
大学生英语竞赛(NECCS)
相关试题推荐
DictationListentothepassage.Forquestions21~25,fillintheblankswiththeexactwordsorphrasesyouhear.Toma
WhatistheaimofTheresaMay’splan?
Howmanyscientistsdidthemanciteasexamplestoillustratehispoint?
A、Shereportedtheproblemtoherboss.B、ShenegotiatedwithTimforasolution.C、Shekeptarecordofhercontribution.D、She
ScottishwriterAdamSmithisoftenconsideredthemostimportanteconomisttheworldhaseverknown.Theconceptsofbargaining
ScottishwriterAdamSmithisoftenconsideredthemostimportanteconomisttheworldhaseverknown.Theconceptsofbargaining
TheMid-AutumnFestivalisanimportantfestivalinsomeAsiancountries.Becausethedateofthisfestivalissetaccordingto
(81)美国政府日前开始督促电视、报纸和杂志停止刊登诸如“想吃就吃,照减不误”、“在睡眠中减肥”等误导性广告标语。美国联邦贸易委员会消费者保护局局长霍华德•比尔斯11月19日说:“著名的新闻媒体应该为他们目前播放的一些广告感到羞愧。某些广告标语听起来实在是
【T1】中国作为一个发展中围家而临着发展经济和保护环境的双重任务。然而,我国人口众多,资源相对不足,经济规模越来越大,经济发展与资源和环境之间的矛盾日益突出。【T2】环境污染严重,生态状况恶化、资源耗费巨大而导致环境破坏等问题,已成为中国经济保持可持续发展
【T1】中国作为一个发展中围家而临着发展经济和保护环境的双重任务。然而,我国人口众多,资源相对不足,经济规模越来越大,经济发展与资源和环境之间的矛盾日益突出。【T2】环境污染严重,生态状况恶化、资源耗费巨大而导致环境破坏等问题,已成为中国经济保持可持续发展
随机试题
(2011年4月)对某一方面的行政工作作出比较全面、系统规定的行政法规被称为________。
在Excel中的工作区中,由行、列组成的格子称为___________。
幽门螺旋杆菌(Hp)的检测方法
在自己独处、无人监督的情况下,仍能按照医学道德规范的要求行事是指
能够促进伤口愈合的水溶性维生素是()
为了将校园建设得更完善,某幼儿园向幼儿每人收取100元来添置10台投影仪。该幼儿园做法()。
简述教育行政复议的范围。
中国人在食疗保健方面很有研究,如老人们常说的:“鱼生火,肉生痰,小米饭是顺气丸,窝头咸菜保平安”;“吃萝卜喝热茶,气得大夫满街爬”等等,都不无道理,当然其中也充满了夸张成分。这段话的主要意思是( )。
近年来,“斜杠青年”成为很多人的时尚追求。它指的是一群不再满足“专一职业”生活方式,而选择拥有多重职业和身份的多元生活人群。对此,有人认为,新产业新技术新业态不断更迭,激烈的竞争促使青年人不断进行自我更新,“我们已经开始进入‘不斜杠即淘汰’的快速变化的社会
Itwon’tbe______totakenotesduringtheseminar,aswewillbehandingoutdetailedsummaries.
最新回复
(
0
)