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
50
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.
【C17】
选项
A、But
B、Even
C、Since
D、Only
答案
B
解析
前面提到很难让熊猫在圈养状态下繁殖,空格后又提到雌熊猫一年只有一次发情期(come into season),说明在野外的熊猫的繁殖也不容易,两个句子是递进关系。B项even表示 “甚至”,加强语气,内容比前一句的意思更进一层。A项But“但是”表示转折。C项Since“由于”表示原因。D项Only“只有”引出条件。
转载请注明原文地址:https://kaotiyun.com/show/5MY4777K
0
考研英语二
相关试题推荐
Theremarkableprogressofscienceandtechnologyinthe20thcenturyhasbroughtenormousbenefitstohumankind.Longandhealt
ReadthefollowingChineseandwriteanabstractof80~100words.YouwriteyourabstractonANSWERSHEET2.
Leadingdoctorstodayweighinonthedebateoverthegovernment’sroleinpromotingpublichealthbydemandingthatministersi
Everyone,itseems,hasahealthproblem.AfterpouringbillionsintotheNationalHealthService,Britishpeoplemoanaboutdir
Scientistsoftenstruggletocommunicatethefindingsofresearch.Oursubjectmattercanbetechnicalandnoteasilydigestedb
OntheheelsofElNino,itsopposite,LaNinamaysoonarrive.InaWeeklyUpdate,scientistsattheNOAAClimatePredictionCe
OntheheelsofElNino,itsopposite,LaNinamaysoonarrive.InaWeeklyUpdate,scientistsattheNOAAClimatePredictionCe
Afull-timejobdoesn’thavetodestroyallhopeoffamilydinnersorafternoonplaytime.Womencanincreasetheirchancesofge
随机试题
(2021年临沂)庄老师说:采用什么样的教学方法,其主要在于教学内容,比如要弄清概念之间的关系,讲授法的效果就较好,而要解决技能操作方面的问题,练习法、演示法等更有优势。庄老师提到的弄清概念之间的关系,按照奥苏贝尔对学习的分类,最合适的学习方式是(
由家族共同体世代沿袭,用以规范家族内部的行为和秩序的习惯法是()
行政追偿
视网膜黄斑中央凹处只有_______细胞和_______细胞。
异烟肼中的特殊杂质为
桃仁的功效是
转学生小红在加入新班级之前总是担心不适应新生活,但进入新班级后,她深深感受到了班级的温暖,和同学老师相处也非常融洽,甚至为自己能够进入该班而感到自豪。这体现了群体的()。
依据一定的经验解决问题的策略是()
一、注意事项1.本试卷由给定资料与作答要求两部分构成。2.第一题、第二题、第五题,所有考生都必须作答。第三题仅限行政执法类、市(地)以下综合管理类职位的考生作答。第四题仅限考省级(含副省级)以上综合管理类职位的考生作答
苏拉独裁
最新回复
(
0
)