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
考研
Scientists have discovered a powerful antibiotic in the blood stream of giant pandas that can destroy bacteria. The Chinese rese
Scientists have discovered a powerful antibiotic in the blood stream of giant pandas that can destroy bacteria. The Chinese rese
admin
2022-01-04
109
问题
Scientists have discovered a powerful antibiotic in the blood stream of giant pandas that can destroy bacteria. The Chinese researchers discovered the【C1】________known as cathelicidin-AM, after【C2】________the panda’s DNA It’s thought that the antibiotic is【C3】________by the bear’s immune system in order to protect them from infections.
The scientists found that cathelicidin-AM killed bacteria in less than an hour【C4】________other antibiotics took more than six hours. They now want to develop the substance as a new drug to fight superbugs.
The【C5】________bears, of which there are just 1,600 in the wild, have become a symbol for conservation—and now there could be a new reason to try and protect them.【C6】________, scientists will not need to rely on the animal’s unreliable breeding ability to【C7】________the new antibiotic, as they have been able to make it artificially in the lab by decoding the genes to produce a small molecule known as a peptide.
Dr Xiuwen Yan, who led the research at the Life Sciences College of Nanjing Agricultural University in China told the Daily Telegraph: "It showed potential antimicrobial activities against wide【C8】________of microorganisms including bacteria, both standard and drug-resistant【C9】________. Under the pressure of increasing microorganisms【C10】________drug resistance against conventional antibiotics, there is【C11】________need to develop new type of antimicrobial agents. Gene-encoded antibiotics play an important role in immune system against【C12】________microorganisms. They cause much less drug resistance than conventional antibiotics."
Panda populations have decreased【C13】________the destruction of their natural habitat and bamboo food【C14】________in China and south east Asia.【C15】________to increase their numbers, including efforts at Edinburgh Zoo with resident pandas Tian Tian and Yang Guang, have been【C16】________for the extreme difficulty in getting them to breed in captivity.【C17】________in the wild, pandas【C18】________to breed easily, as the females only come into season once a year.
It has been【C19】________that the millions of pounds spent in using expensive artificial breeding techniques could be put to better use on other conservation projects. And this new discovery is likely to【C20】________the case to save the endangered creatures.
【C12】
选项
A、disastrous
B、profitable
C、poisonous
D、normal
答案
C
解析
前半句提到具有基因编码的抗菌肽在免疫系统中起到非常重要的作用,而免疫系统是人体抵御病原菌侵犯的保卫系统,因此against(抵御)后面提到的microorganisms应是对人体不利的,空格处应填入一个贬义词。C项poisonous意为“有毒的,有害的”,语义符合。A项disastrous“灾难性的”,通常形容事件、自然灾害和后果等。B项profitable和D项normal分别表示“有益的”和“正常的”,一个是褒义词,一个是中性词。语义不符。
转载请注明原文地址:https://kaotiyun.com/show/MMY4777K
0
考研英语二
相关试题推荐
Theremarkableprogressofscienceandtechnologyinthe20thcenturyhasbroughtenormousbenefitstohumankind.Longandhealt
Scienceisanenterpriseconcernedwithgaininginformationaboutcausality,ortherelationshipbetweencauseandeffect.Asim
ReadthestoryinChinesebelow,andthenwriteacompositionofnolessthan150wordsunderthetitleof"TheGoalofLife".Y
TheinteractionsbetweenChinaandtheUSwillsurelyhaveasignificant______onpeaceandstabilityintheAsia-Pacificregion
Scientistsoftenstruggletocommunicatethefindingsofresearch.Oursubjectmattercanbetechnicalandnoteasilydigestedb
Scientistsoftenstruggletocommunicatethefindingsofresearch.Oursubjectmattercanbetechnicalandnoteasilydigestedb
Thebattletopreventoratleastslowglobalwarminghasintensifiedinthepastyearasscientistshavelearnedmoreaboutthe
OntheheelsofElNino,itsopposite,LaNinamaysoonarrive.InaWeeklyUpdate,scientistsattheNOAAClimatePredictionCe
随机试题
原因和结果这对范畴是揭示事物()
患者男性,6岁,查体发现胸骨左缘三、四肋间收缩期杂音,伴有震颤,超声多普勒显示室间隔有左向右分流。辅助检查不会出现
下列关于社会主义市场经济的说法错误的是()。
由省部级以上单位组织导游评比或竞赛获得()的导游人员,报国务院旅游行政管理部门批准后,可晋升一级导游等级。
基督教的主要节日有()。
《六尺巷》取材于桐城六尺巷典故,是一首展示互敬礼让、和谐包容文化内涵的民族调式歌曲,在传统戏曲的基础上大胆吸收了RnB(节奏布鲁斯或作节奏蓝调,又称节奏怨曲,融合了爵士乐、电子音乐和布鲁斯音乐的音乐类型)、说唱等国外流行音乐元素,曲调优美,经赵薇在春晚演唱
《流浪地球》以超过22亿的票房成为春节电影票房冠军。然而,在小说原著中,电影讲述的故事只是地球路过木星时的几小段文字而已。这样一部小说,也给了“中国科幻”一个宏阔的背景。人类带着地球在宇宙流浪,距离将以4.3光年为计、时间将以2500年为计,其
人能创造和使用工具以增强自身的生存能力;能认识世界和改造世界,以实现和满足人的各种需要;能认识自己和改造自己,以发展和完善人自身。这主要是因为人具有()。
Dolphinsarenottheonlyanimals(31)humansthatusesoundsinanapparentlyintelligentmanner.Whalesalsouseacomplexsys
Mydaughterhasmanystrongpoints,______beinghonestisonlyonepart.
最新回复
(
0
)