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
外语
The study of genetics has given rise to a profitable new industry called biotechnology. As the name【C1】______, it combines biolo
The study of genetics has given rise to a profitable new industry called biotechnology. As the name【C1】______, it combines biolo
admin
2014-02-22
40
问题
The study of genetics has given rise to a profitable new industry called biotechnology. As the name【C1】______, it combines biology and modern technology through such【C2】______as genetic engineering. Some of the new biotech companies, as they are called, 【C3】______in agriculture and are working enthusiastically to patent(取得专利)seeds that give a high yield(产量), that【C4】______disease, drought and frost, and that reduce the need for dangerous chemicals. 【C5】______such goals could be achieved, it would be most beneficial. But some have raised【C6】______about genetically engineered crops.
"In nature, genetic diversity(多样性)is created within certain limits," says the book Genetic Engineering, Food and Our Environment. " A rose can be crossed(杂交)with a different kind of rose, but a rose will【C7】______cross with a potato... " Genetic engineering, on the other hand, usually involves taking genes from one species and inserting them into another in an attempt to【C8】______a desired property or character. This could mean, 【C9】______, selecting a gene which leads to the production of a chemical with antifreeze properties from an arctic fish, and joining it into a potato or strawberry to make it frost-resistant. It is now possible for plants to be engineered with genes【C10】______from bacteria, viruses, insects, animals or even humans. 【C11】______, then, biotechnology allows humans to break the genetic walls that【C12】______species.
Like the green revolution, 【C13】______some call the gene revolution【C14】______to the problem of genetic uniformity(千篇一律)— some say even more so【C15】______geneticists can employ techniques such【C16】______cloning and organ culture, processes that produce perfectly 【C17】______copies, or clones. Concerns about the biodiversity, therefore, remain. Genetically altered plants, however, raise new【C18】______, such as the effects that they may have on us and the environment. "We are flying blindly into a new【C19】______of agricultural biotechnology with high hopes, few constraints, and little idea of the potential【C20】______," said science writer Jeremy Rifkin.
【C12】
选项
A、separate
B、form
C、create
D、vary
答案
A
解析
动词词义辨析。通过基因技术,人类成为独立的物种。选项中,separate符合上下文语义。故答案为A。
转载请注明原文地址:https://kaotiyun.com/show/YFQO777K
0
考博英语
相关试题推荐
Thebusinessofadvertisingistoinventmethodsofaddressingmassiveaudiencesinalanguagedesignedtobeeasilyaccessible
Friendsplayanimportantpartinourlives,andalthoughwemaytake【46】forgranted,weoftendon’tclearlyunderstandhowwem
Fearanditscompanionpainaretwoofthemostusefulthingsthatmenandanimalspossess,iftheyareproperlyused.Iffired
Fearanditscompanionpainaretwoofthemostusefulthingsthatmenandanimalspossess,iftheyareproperlyused.Iffired
Aswomendemonstrateagrowingappetiteforconsumertechproducts,retailersandmanufacturersarestillonlybeginningtocate
Eversincethisgovernment’stermbegan,theattitudetoteachershasbeenovershadowedbythemantrathatgoodteacherscannot
Thelastdecadehasseenatremendousexpansionofscientificknowledgeinhumangenetics.Ourunderstandingofhumangenesand
Asoneworkswithcolorinapracticalorexperimentalway,oneisimpressedbytwoapparentlyunrelatedfacts.Colorasseenis
OneofthefeaturesofLondonisthenumberofbigstores,mostofwhicharetobefoundinorneartheWestEnd.Theyarevast
随机试题
测砷时,测砷瓶各连接处都不能漏气,否则结果不准确。
患者,女性,21岁,不规则关节痛1年余,近2个月来两面颊部出现对称性水肿性红斑,日照后明显,伴张口困难及吞咽困难,遇冷手指苍白疼痛。实验室检查:ESR150mm/h,ANA(+),抗ds—DNA(+),抗Scl-70(+),食管吞钡查食管蠕动差。最可能的诊
Biotechnologyisexpectedtobringimportantadvancesinmedicaldiagnosisandtherapy,insolvingfoodproblems,inenergysavi
男,65岁,大便频数,里急后重,便少量混有血黏液2个月,便常规见大量红细胞,偶见白细胞。
用罗马数字Ⅰ~Ⅻ表示凝血因子,其中缺下列哪一因子
教育的目的是衡量和评价教育实施效果的根本依据和标准。()(2016.广东)
文稿签发前的最后一个处理环节是()。
某市为了发展文化强市战略,在2008年、2010年先后建成了两个图书馆,2008年底共办理市民借书证7万余个,到2010年底共办理市民借书证13万个。2011年,该市又在新区建立了第三个图书馆,于2012年初落成开放。截至2012年底,全市共计办理市民借书
Mr.PlummertraveledtoLondon______.Thelastpersontogetintothecompartmentwas______.
OpinionpollsrepeatedlytellusthattheonlythingAmericansworryaboutmorethantheenvironmentistheirhealth.Thisis【C1
最新回复
(
0
)