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
2017-02-17
36
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。
转载请注明原文地址:https://kaotiyun.com/show/rREZ777K
0
考研英语一
相关试题推荐
It’sdifficulttoimagineaworldwithoutantibiotics.Theycurediseasesthatkilledourancestorsincrowds,andenableanynu
It’sdifficulttoimagineaworldwithoutantibiotics.Theycurediseasesthatkilledourancestorsincrowds,andenableanynu
It’sdifficulttoimagineaworldwithoutantibiotics.Theycurediseasesthatkilledourancestorsincrowds,andenableanynu
It’sdifficulttoimagineaworldwithoutantibiotics.Theycurediseasesthatkilledourancestorsincrowds,andenableanynu
It’sdifficulttoimagineaworldwithoutantibiotics.Theycurediseasesthatkilledourancestorsincrowds,andenableanynu
It’sdifficulttoimagineaworldwithoutantibiotics.Theycurediseasesthatkilledourancestorsincrowds,andenableanynu
Scientistssaytheyhavefoundawaytoturnbodyfatintoabettertypeoffatthatburnsoffcaloriesandweight.TheUSJohns
Scientistssaytheyhavefoundawaytoturnbodyfatintoabettertypeoffatthatburnsoffcaloriesandweight.TheUSJohns
随机试题
Thecomputerisawonderfulmachine.Itisthemostimportantinventionsincethetypeofengineusedincars.Todayithasthe
男性患者,56岁。乏力,腹胀半年。查体:贫血貌,肝肋下1cm,脾肋下7cm。血常规:白细胞260×109/L,血红蛋白78g/L,血小板400×109/L。检查分类可见中、晚幼粒为主,NAP积分降低。最可能的诊断是
木瓜的功效是()
下列说法中正确的是
关于工程量计算的注意事项,说法正确的有()。
根据总账与明细账的平行登记要求,每项经济业务必须在同一期间登记明细账和总账。()
对沪港通相关的企业所得税政策,说法错误的是()。
下列关于企业所得税纳税地点的表述中,正确的有()。
旅行团在游览中,一游客突发心脏病,此时导游人员不正确做法应是()。
企业战略的实质是实现()之间的动态平衡。
最新回复
(
0
)