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 resea
Scientists have discovered a powerful antibiotic in the blood stream of giant pandas that can destroy bacteria The Chinese resea
admin
2017-08-11
45
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.
【C4】
选项
A、for
B、after
C、unless
D、while
答案
D
解析
前半句提到科学家们发现抗菌肽一AM能在不到一小时的时间内杀死病菌,后半句提到其他抗生素则需要六个小时以上,可以看出是在对比抗菌肽一AM和其他抗生素,因此空格处需要一个表示对比关系的连词。D项while“然而”符合逻辑。
转载请注明原文地址:https://kaotiyun.com/show/hSbZ777K
0
考研英语一
相关试题推荐
Moreboysthangirlsarcbornallovertheworld,butanewstudyhasfoundthatthecloserpeoplelivetotheequator,thesmal
"Always"."Never".TheseareprobablythetwomostpowerfulwordsintheEnglishlanguage.Evenmorepowerfulthanyesandno,s
Tosome,JohnLennon’spianoissacred.Mostmarriedpeopleconsidertheirweddingringssacred.Kidswithnonotionofsanctity
Thebestsolutionistostoppretendingthatpeople’spersonalinformation,suchasSocialSecurityaccountnumbersandbirthda
Ananalysisof20,928postmenopausalwomenshowedthatthetallerawomanis,thegreaterherriskforanumberofcancers,incl
Ananalysisof20,928postmenopausalwomenshowedthatthetallerawomanis,thegreaterherriskforanumberofcancers,incl
Ifplanningofferssomanytangiblebenefits,whydomanyprofessionalsresistit?Somearemorecomfortablewithacting,rather
TheU.S.spaceagency,NASA,isplanningtolaunchasatellitethatscientistshopewillanswerfundamentalquestionsaboutthe
Sevenyearsago,agroupoffemalescientistsattheMassachusettsInstituteofTechnologyproducedapieceofresearchwhichsh
随机试题
有关奎尼丁药理作用的叙述,正确的是
尿道损伤后,有排尿困难,导尿管能插入膀胱,应将导尿管留置多久
规定Ⅱ类砂的含泥量按质量计所占比例应()。
单排脚手架的横向水平杆不应设置的部位有()。
在企业股份制改组过程中,企业的债权、债务应该随之重组。( )
某企业对外币业务采用交易发生日的即期汇率进行核算,按月计算汇兑损益。1月20日销售价款为20万美元产品一批,货款尚未收到,当日的市场汇率为l美元=8.25元人民币。1月31日的市场汇率为1美元=8.28元人民币。2月28日市场汇率为1美元=8.23元人民币
Usually,therearetworeasonstopursuescientificknowledge:forthesakeoftheknowledgeitself,andforthepracticalu
【B1】【B5】
【B1】【B4】
A、Directorofthesafetydepartment.B、Mr.Grand’spersonalassistant.C、Headofthepersonneldepartment.D、Thepublicrelation
最新回复
(
0
)