首页
登录
职称英语
Today nanotechnology(纳米技术)is still in a formative phase. Yet it is maturing
Today nanotechnology(纳米技术)is still in a formative phase. Yet it is maturing
游客
2023-08-25
55
管理
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 [br] 【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:http://tihaiku.com/zcyy/2955001.html
相关试题推荐
Todaynanotechnology(纳米技术)isstillinaformativephase.Yetitismaturing
Todaynanotechnology(纳米技术)isstillinaformativephase.Yetitismaturing
Todaynanotechnology(纳米技术)isstillinaformativephase.Yetitismaturing
Todaynanotechnology(纳米技术)isstillinaformativephase.Yetitismaturing
Todaynanotechnology(纳米技术)isstillinaformativephase.Yetitismaturing
Todaynanotechnology(纳米技术)isstillinaformativephase.Yetitismaturing
Todaynanotechnology(纳米技术)isstillinaformativephase.Yetitismaturing
Todaynanotechnology(纳米技术)isstillinaformativephase.Yetitismaturing
Todaynanotechnology(纳米技术)isstillinaformativephase.Yetitismaturing
Todaynanotechnology(纳米技术)isstillinaformativephase.Yetitismaturing
随机试题
【B1】[br]【B19】A、suchB、soC、veryD、manyB由空格后的被修饰词是形容词serious与that可知应选so,构成固定搭配
人的一生好比马拉松赛跑。人人都有最后一圈,这一圈通常属于人生道路漫长的老人。七老八十的人,穿过艰难的世途,穿过芸芸众生,穿过重重障碍,于是到了人生的最后
EachUSDAbeefgradeisameasureofadistinctlevelofquality.Becausebe
史学界比较流行的观点认为,美洲印第安人来自()。A.大洋洲 B.亚洲 C.
A公司2x13年至2x15年发生与金融资产有关的业务如下:(1)2x
根据资料,可以推出:() A.2011年中部省份中河南货物和服务出口量最少
小侯在一次输血过程中不幸感染了艾滋病,以下关于艾滋病患者小侯的陈述错误的是()
()采用的是平衡计分卡设定目标的方法,即通过建立包括财务指标与非财务指标的综合指
大量氮、磷等植物营养元素进入水体后,营养物质过剩,藻类大量繁殖,水质恶化,水生生
投资项目决策分析与评价的基本要求包括贯彻落实科学发展观、资料数据准确可靠和()
最新回复
(
0
)