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
39
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
Howmanythingscanyouseeinthenightsky?Alot!OnaclearnightyoumightseetheMoon,someplanets,andthousandsofspar
Theperiodofadolescence,i.e,theperiodbetweenchildhoodandadulthood,maybelongorshort,dependingonsocialexpectation
Somepeoplebelievethat"KingJohn"waswrittenbyShakespeare,butsomepeopleitmightbewrittenbyan______author.
BritainandSpainhavethehighestproportionofcocaineusersintheEU,accordingtoapan-Europeandrugssurveypublishedtod
Thequestionofwhetherwarisinevitableisonewhichhasconcernedmanyoftheworld’sgreatwriters.Beforeconsideringthis
In1993,NewYorkStateorderedstorestochargeadepositonbeverage(饮料)containers.Withinayear,consumershadreturnedmi
Peoplewholack______corevaluesrelyonsuchexternalfactorsastheirlooksorstatusinordertofeelgoodaboutthemselves.
StandardEnglishisthevarietyofEnglishwhichisusuallyusedinprintandwhichisnormallytaughtinschoolsandtonon-nat
Lifeinsuranceisfinancialprotectionfordependentsagainstloss______thebread-winner’sdeath.
ThepsychologyofwarrantiesProtectionracket保单心理学保护之诈Ifextendedguaranteesareoverpriced,
随机试题
A、①B、②C、③D、④B
抑制剂的作用是
关于慢性胃窦胃炎,不正确的是
下列对后张预应力施工时的表述错误的是()。
菜单成本,是指厂商改变价格,需要重新印刷它的产品价格表,向客户通报改变价格的信息和理由;所有这一切都会引起厂商的开支和费用。虽然菜单成本的数值并不大,但是菜单价目表变动的次数很多也会给厂商带来一些不利之处。根据上述定义,下列属于菜单成本的是()。
1,1,3,9,23,()
阅读以下文字,完成下列问题。教育的目的是什么?教育的目的就是帮助人获得生存与生活的本领。不管一个人将来从事什么工作,都必须能继续自己的生活,解决日常生活中的问题。但我们的教育一直有一种忽视和轻视日常生活的倾向.在教育中一直将知识的学习与日常生活相
市场经济所蕴含的不仅仅是经济运行方式,它在现代化过程中一旦全面_________,将发生文化、精神、道德、伦理、价值观念等方面的重大变化。这些变化都是现代化的重要维度,用它们_________当代作家群体的精神面貌和心理状态,不难发现部分作家时代观念的缺失
应当减轻处罚的情节是()
Theprimaryresponsibilityofagovernmentistohelpitspeople____________(消除贫困和疾病).
最新回复
(
0
)