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
73
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.
【C7】
选项
A、prove
B、exclude
C、maintain
D、harvest
答案
D
解析
前半句提到科学家们不需要依赖熊猫不稳定的繁殖能力,空格后又提到原因:科学家们已经能够在实验室里人工制造该抗生素(make it artificially),可以推测前面所说内容也与获取抗生素有关,因此空格处所填词应与make意思相近,D项harvest有“获得”之意,符合题意。A项prove、B项exclude和C项maintain分别表示“证明”、“排除”和“维持”,均不含有和make相近的意思。
转载请注明原文地址:https://jikaoti.com/ti/41pRFFFM
0
考研英语二
相关试题推荐
Geneticengineeringholdsgreatpotentialpayoffsforfarmersandconsumersbymakingcropsresistanttopests,diseases,andev
Accordingtothepassage,thefactthatyoungpeopleseemtobelosinginterestinscience______.Thesecondparagraphismain
ReadthefollowingChineseandwriteanabstractof80~100words.YouwriteyourabstractonANSWERSHEET2.
ReadthefollowingChineseandwriteanabstractof80~100words.WriteyourabstractonANSWERSHEET2.金融危机
Scienceisanenterpriseconcernedwithgaininginformationaboutcausality,ortherelationshipbetweencauseandeffect.Asim
ReadthestoryinChinesebelow,andthenwriteacompositionofnolessthan150wordsunderthetitleof"TheGoalofLife".Y
Scientistsoftenstruggletocommunicatethefindingsofresearch.Oursubjectmattercanbetechnicalandnoteasilydigestedb
Thebattletopreventoratleastslowglobalwarminghasintensifiedinthepastyearasscientistshavelearnedmoreaboutthe
Thebattletopreventoratleastslowglobalwarminghasintensifiedinthepastyearasscientistshavelearnedmoreaboutthe
OntheheelsofElNino,itsopposite,LaNinamaysoonarrive.InaWeeklyUpdate,scientistsattheNOAAClimatePredictionCe
随机试题
预防中枢神经系统白血病时,常用作鞘内注射的化疗药是
A.生理需要B.安全需要C.爱与被爱的需要D.尊重的需要E.自我实现的需要发挥自己的潜能,实现自已的理想与抱负的需要是
患者,男,50岁,失眠症数年。关于其治疗与护理措施正确的是()
按照病理分类,婴幼儿最常见的肺炎是
流动资产是指预计在一个正常营业周期中变现、出售或耗用的资产。()
教师:教室正确选项为()
为保证满负荷,必须有多高的出勤率?如果该厂段优化组合掉20人,又要保护90%的出勤率,必须提高多少效率?
在FastEthernet中,为了使物理层在实现100Mbps速率时所使用的传输介质和信号编码方式的变化不会影响MAC子层,100BASE-T标准定义了______。
Readthefollowingpassageandfillintheblankswithitscontents.WritethemonyourANSWERSHEET.Asperthetermsandc
A、Byteachingwritershowtoimitate.B、Byidentifyingwriter’sstrengthandweakness.C、Bydevelopingwriter’spotential.D、By
最新回复
(
0
)