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
2023-02-14
100
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 then-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.
【C8】
选项
A、area
B、extent
C、spectrum
D、margin
答案
C
解析
从空格后的including bacteria(包括细菌在内)可以推测出这些microorganisms (微生物)不只一种而是多种。C项spectrum与wide…of搭配后表示“一系列的”,语义符合。A项area和D项margin与wide…of搭配后分别表示“大片的”、“大幅度的”,表示面积和空间。B项extent“范围,程度”,表示范围时多指面积或程度。
转载请注明原文地址:https://kaotiyun.com/show/ORMD777K
0
考研英语二
相关试题推荐
Skepticsofhighereducationoftencomplainthatuniversitiesoffertoomanyboringdegreeswithlittlevalueintheworkplace.【
Skepticsofhighereducationoftencomplainthatuniversitiesoffertoomanyboringdegreeswithlittlevalueintheworkplace.【
Skepticsofhighereducationoftencomplainthatuniversitiesoffertoomanyboringdegreeswithlittlevalueintheworkplace.【
Skepticsofhighereducationoftencomplainthatuniversitiesoffertoomanyboringdegreeswithlittlevalueintheworkplace.【
Scientistssentpatternsofelectricitycoursingacrosspeople’sbrains,coaxingtheirbrainstoseelettersthatweren’tthere.
Everyonewantstobeauthentic.Youwanttobetruetoyourself,notaslavishfollowerofsocialexpectations.Youwantto"liv
Inourcontemporaryculture,theprospectofcommunicatingwith—orevenlookingat—astrangerisvirtuallyunbearable.Everyone
ResearcherssaytheyhavediscoverednewdetailsaboutthedayanasteroidhitEarthandkilledoffthedinosaurs.Scientistsbe
It’sdifficulttoimagineaworldwithoutantibiotics.Theycurediseasesthatkilledourancestorsincrowds,andenableanynu
Scientistshavediscoveredapowerfulantibioticinthebloodstreamofgiantpandasthatcandestroybacteria.TheChineserese
随机试题
巴金作品爱情的三部曲是指_________、_________、_________。
Wilson病
45岁女性患者,3小时前车祸头部受伤,伤后立即昏迷,做CT后入院,入院检查中度昏迷,右瞳散大,光反射消失,左上下肢肌张力增高,病理征(+),左顶枕有直径4.0cm头皮下血肿,CT示右额颞部高密度新月影。最重要的治疗是
新增房地产供给取决于这些房地产的价格和其开发成本。房地产供给增量的主要来源是()。
容器内储有一定量的理想气体,若保持容积不变,使气体的温度升高,则分子的平均碰撞频率和平均自由程的变化情况为()。
【背景资料】某公司承建城市主干道改造工程,其结构为二灰土底基层、水泥稳定碎石基层和沥青混凝土面层,工期要求当年5月完成拆迁,11月底完成施工。由于城市道路施工干扰因素多,有较大的技术难度,项目部提前进行了施工技术准备工作。水泥
H公司以股票抵偿应付甲公司债券,其债务重组收益为()元。H公司以一套生产设备抵偿应付甲公司债券,其债务重组收益为()元。
PC机主存储器中基本存储单元的长度是______。
Inwhatnowseemsliketheprehistorictimesofcomputerhistory,theearlypost-warera(战后时期),therewasaquitewidespreadcon
Christmasiscelebrated【B1】______theworld.December25isbelievedtobethebirthdayofJesusChrist.People【B2】______gift
最新回复
(
0
)