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
Today nanotechnology(纳米技术)is still in a formative phase. Yet it is maturing rapidly. Between 1997 and 2005, investment in nanote
Today nanotechnology(纳米技术)is still in a formative phase. Yet it is maturing rapidly. Between 1997 and 2005, investment in nanote
admin
2014-06-30
33
问题
Today nanotechnology(纳米技术)is still in a formative phase. Yet it is maturing rapidly. Between 1997 and 2005, investment in nanotech research and development by governments around the world【C1】______from $ 432 million to about $4. 1 billion, and corresponding industry investment exceeded that of governments by 2005. By 2015, products incorporating nanotech will contribute approximately $ 1 trillion to the global economy.
Descriptions of nanotech typically characterize it purely in terms of the minute size—assemblies between the size of an atom and about 100 molecular diameters(分子直径). That【C2】______makes it sound as though nanotech is merely looking to use infinitely smaller parts than conventional engineering. But rearranging the atoms and molecules leads to new【C3】______. One sees a transition between the fixed behavior of individual atoms and molecules and the adjustable behavior of collectives. Thus, nanotechnology might better be viewed as the【C4】______of quantum theory(量子论)and other nano specific phenomena to fundamentally control the properties and behavior of matter.
The second stage, which began in 2005, focuses on active nanostructures that change their size, shape, conductivity or other properties during use. New drug delivery particles could release therapeutic(治疗的)molecules in the body only after they reached their【C5】______diseased tissues. Electronic components such as transistors and amplifiers with adaptive functions could be reduced to single, complex molecules.
Starting around 2010, workers will【C6】______expertise with systems of nanostructures, directing large numbers of intricate components to specified ends. One application could involve the guided self assembly of nanoelectronic components into three dimensional circuits and whole devices. Medicine could employ such systems to improve the tissue compatibility of implants, or perhaps even to build【C7】______organs.
After 2015 -2020, the field will include molecular nanosystems. Whereas biological systems are water based and markedly temperature sensitive, these molecular nanosystems will be able to operate in a far wider range of environments and should be much faster. Computers and robots could be reduced to【C8】______small sizes. New interfaces linking people directly to electronics could change telecommunications.
Over time, therefore, nanotechnology should benefit every industrial sector and health care field. Nanotech does, however, pose new challenges to risk governance as well. Internationally, more needs to be done to collect the scientific information needed to resolve the【C9】______and to install the proper regulatory oversight. Helping the public to【C10】______nanotech soberly in a big picture that retains human values and quality of life will also be essential for this powerful new discipline to live up to its astonishing potential.
A)ambiguities I)indignation
B)application J)ingenious
C)artificial K)instantaneously
D)compulsory L)perceive
E)cultivate M)properties
F)depiction N)soared
G)extraordinarily O)targeted
H)illuminate
【C1】
选项
答案
N
解析
根据句子结构可知,空格处缺少动词作谓语。由空格后的from$432 million toabout $4.1 billion可知,世界各国政府对纳米技术研发的投资从1997年的4.32亿美元猛增到2005年的41亿美元。N)soared“猛增”符合句意,故为答案。
转载请注明原文地址:https://kaotiyun.com/show/L417777K
0
大学英语六级
相关试题推荐
Itwouldbeinterestingtodiscoverhowmanyyoungpeoplegotouniversitywithoutanyclearideaofwhattheyaregoingtodoa
Itwouldbeinterestingtodiscoverhowmanyyoungpeoplegotouniversitywithoutanyclearideaofwhattheyaregoingtodoa
MyViewonWritingaBlog1.越来越多的大学生以写博客来记录生活,表达感情.发表意见2.有人支持.有人反对3.你的看法
Astrolltoschoolinthemorningcanhelpkidsprepareforthestressesthatawaitthemintheclassroom.They’llhaveless【C1】
Thejobofraisingchildrenisatoughone.Childrendon’tcomewithaninstruction【C1】______.Andeachchildisdifferent.Sop
A、Theydon’tneedconventionalsignsandsymbols.B、Theyonlyrequireareceiverincommunication.C、Thedistancebetweencommun
RecessionFuelsShiftfromPrivatetoPublicSchoolsWhenthefamilybudgetstartedfeelingtherecession’spinchlastyear,
FiveEco-crimesWeCommitEveryDayAskyourselfthis:howgreenamIreally?Youmightthinkyouaredoingyourbitforthe
吃饭时间,“你吃了吗?”是中国人最常用的问候语。不理解这种风俗的外国人会认为这是在邀请一起吃饭。但是,这仅仅是一种问候,不是真的在发出邀请,所以可以回答“吃了,我吃饭了。”或者说“没有,我还没有吃。”除了“你吃了吗?”,中文中还有其他打招呼的方式,比如
随机试题
利用比色法测定酱油中氨基酸态氮的含量时,在pH=4.8的()缓冲溶液中,氨基酸态氮与乙酰丙酮和甲醛反应生成黄色的氨基酸衍生物,比色测定。
油层套管是把()和其他地层封隔开,防止油、气、水层相互窜通干扰。
教育学成为一门独立学科的开始,是以哪本书的出版为标志的?()
招标师在从业过程中,因违法违规或因过错过失给当事人造成损失,依法应承担()。
计量器具经检定机构检定后,由其出具的可用来评定计量器具的性能和质量是否符合法定要求的检定印、证有()。
下列各项,符合《建筑法》建设工程监理规定的是( )。
资料一C国青亚公司成立于1986年,主营业务是向国内外主要知名钢琴厂家提供钢琴的各种零部件。钢琴的核心部件是码克,做工要求极为精细。2002年青亚公司开始自行研发码克,公司创始人投入多年积蓄,并向亲朋好友借款,累计筹资4000万元,引进了世界最先进的五
某图片的分辨率为800像素×600像素,在某种显示器上充满整个屏幕。若换成1600像素×1200像素分辨率的显示器,该图片所占屏幕的比例大小为()。
著名社会学家费孝通先生所_______的乡土中国,正在发生改变。在我们的传统社会里,人际关系织成了一张张庞大而复杂的网,或因血缘,或因地缘,或因姻亲……,各种“缘”让彼此熟悉、彼此关照,乡土中国是一张通过“熟人”_______的网络。填入画横线部
(2014年)设函数f(u)具有二阶连续导数,z=f(excosy)满足=(4z+excosy)e2x。若f(0)=0,f′(0)=0,求f(u)的表达式。
最新回复
(
0
)