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
50
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.
【C14】
选项
A、combines
B、contributes
C、commands
D、breaks
答案
B
解析
固定搭配。contributes与to为固定搭配,意为“有助于……”。
转载请注明原文地址:https://kaotiyun.com/show/lFQO777K
0
考博英语
相关试题推荐
Howmanythingscanyouseeinthenightsky?Alot!OnaclearnightyoumightseetheMoon,someplanets,andthousandsofspar
Friendsplayanimportantpartinourlives,andalthoughwemaytake【46】forgranted,weoftendon’tclearlyunderstandhowwem
Aswomendemonstrateagrowingappetiteforconsumertechproducts,retailersandmanufacturersarestillonlybeginningtocate
Hypertensionplacesstressonanumberoforgans(calledtargetorgans,includingthekidney,eyes,andheart,causingthemto___
Mathematicalabilityandmusicalabilitymaynotseemonthesurfacetobeconnected,butpeoplewhohaveresearchedthesubject
TheEnglishmanhasbeencalledapoliticalanimal,andhevalueswhatispoliticalandpracticalsomuchthatideaseasilybecom
Sociologistsusethetermpowertorefertothecapacityofpeopleorgroupstocontrolorinfluencetheactionsofothers,whet
TheUNofficialsaidaidprogramswillbe______untilthereisadequateprotectionforreliefpersonnel.
Likemanyconceptsinsocialpsychology,aggressionhasmanydefinitions,evenmanyevaluations.(l)Somethinkofaggressionas
Despiteeffortstoprovidethemwithalternativessuchastheshelter,womenfrequentlyandrepeatedlyreturnedtoviolentanda
随机试题
关于Km值的意义,不正确的是()。
下列哪项不符合滤泡淋巴瘤的特点?
患者,男性,59岁,身高170cm,体重85kg。患高血压病lO余年,未规律服用降压药,血压波动在140~160/90~100mmHg,未予重视,每当头晕、头痛明显时服药,症状消失后停药。吸烟40年,每日20支,饮酒20年,每日2两,近日由于工作劳累,
以下关于桩冠修复中桩长度的说法不正确的是A.在保证根尖封闭的情况下尽量的长B.至少要等于冠长C.根尖至少要保留3mm充填物D.必须达根长的4/5E.越长固位越好
原子处于能量最低状态称为
甲公司与乙公司签订产品订货合同,合同约定:由甲公司为乙公司生产实木沙发、实木餐桌餐椅等一批实木家具,价款30万元,自合同签订之日起3日内乙公司预付10万元,甲公司交货后3日内付15万元,5万尾款待乙公司检验后3日内付清。双方同时约定,由乙公司提供生产所需的
[背景]经过资格预审后,已通过资格预审的投标人,按建设单位要求,到指定地点购买招标文件。投标人购买到的招标文件由以下内容组成:①投标邀请书;②招标图纸和技术条款;③工程量清单;④施工方案;⑤投标辅助资料;⑥保证工程质量、进度、安全的主要技术组织措施
下列对银行资本的作用的表述中,不正确的是()。
职位评价方法中,需先设计出一套供比较用的评级标准尺度的方法是()。
贾某夫妇欲从福利院收养一名孤儿,下列关于贾某夫妇应当满足的条件说法正确的是()。
最新回复
(
0
)