首页
登录
职称英语
Many of the grand challenges of today and the future are found in the questi
Many of the grand challenges of today and the future are found in the questi
游客
2023-10-31
24
管理
问题
Many of the grand challenges of today and the future are found in the question: " How are we going to solve the problems and make serious improvements in industrial manufacturing, disease control, environmental pollution control, global climate change, food production, transportation, communications, and others?" Nanotechnology(纳米技术)promises to make revolutionary contributions. Within the next few years we can expect to see major improvements. Here are some possibilities of the things to come.
Nanotechnology is fundamentally changing the way materials and devices will be produced in the future. Nanostructures, ceramics, polymers, metals, and other materials will have greatly improved mechanical properties. In fact, with the ability to build things atom-by-atom and molecule-by-molecule there will be new classes of structural materials. Nanotechnology will enable products to be lighter, stronger, smarter, cheaper, cleaner, and more precise.
The ability to synthesize nanoscale building blocks with precisely controlled size and composition and then to assemble them into larger structures with unique properties and functions will revolutionize segments of the materials manufacturing industry. Nanotechnology is expected to bring about lighter, stronger, and programmable materials: reductions in life-cycle costs through lower failure rates: innovative devices based on new principles architectures: and use of molecular or cluster manufacturing.
Nanotechnology will provide new tools for medicine. It could radically change the way surgery is done. It will make it possible to do molecular-scale surgery to repair and rearrange cells. Since disease is the result of physical disorder, misarranged molecules and cells, medicine at this level should be able to cure most diseases. Mutations in DNA could be repaired and cancer cells, toxic chemicals, and viruses could be destroyed through use of medical nanodevices.
Nanotechnology-enabled increases in computational power will permit the characterization of macromolecular networks in realistic environments. Such simulations will be essential elements in the development of biocompatible implants and in the drug discovery process. Nanotechnology has the potential to significantly impact energy efficiency, storage, and production. Nanotechnology can change the economics of energy production. [br] Which of the following statements is INCORRECT?
选项
A、Nanotechnology can greatly improve mechanical properties of materials.
B、Nanotechnology is making considerable contributions to mankind.
C、Products are going to be lighter but more costly through nanotechnology.
D、Nanotechnology is able to give rise to new structural materials.
答案
C
解析
推理判断题。文章提到纳米技术将改变材料的机械性能,使材料变得轻便、坚韧、灵巧且便宜:Nanotechnology will enable products to be lighter,stronger,smarter,cheaper…选项C与原意不符,故答案为C。
转载请注明原文地址:https://tihaiku.com/zcyy/3145578.html
相关试题推荐
Studentloansarebasedonasimpleidea:thatagraduate’sfutureflowofe
Studentloansarebasedonasimpleidea:thatagraduate’sfutureflowofe
Studentloansarebasedonasimpleidea:thatagraduate’sfutureflowofe
Whichofthefollowingitalicizedpartsisasubjectclause(主语从句)?A、Thequestion
Thefutureofthecompanyisatstake;manyofitstalentedemployeeshaveresig
Thereisnoquestionofsuccess.Theunderlinedwordmeans______.A、possibilityB
AllthefollowingsentencesdefinitelyIndicatefuturetimeEXCEPT______.A、Mothe
Sincethefutureisuncertain,nobodycanreadit,______?A、canheB、cantheyC、
Toimpressafutureboss,oneshoulddressneatly,be______,anddisplayintere
Thegeneralasksthesoldiersmanyquestionstokeepthemontheirtoes.Theund
随机试题
某项目预计费用现值是1000万元人民币,效益现值是980万元人民币。如果采用“费
理财师可以把家庭结余分为()两个部分。A.生活结余 B.理财结余 C.专项结
善于治疗梅毒或因梅毒服用汞剂而致肢体拘挛的药物是A、地肤子 B、土茯苓 C、
Thechangeinthatvillagewasmiraculou
从所给的四个选项中,选择最合适的一个填入问号处,使之呈现一定的规律性:
行政组织按照( )可划分为领导机关、执行机关、辅助机关和派出机关等。A.公共管
下列属于一般性货币政策工具的有()。A.汇率政策 B.再贴现 C.公开
下列关于辅酶与辅基的叙述中错误的是A.辅酶与辅基均为酶的辅助因子 B.辅酶以非
易通公司是一家处于创业期的IT培训公司,由于处于发展阶段,公司的人员结构变动很大
有较高要求的抗震结构适用的钢筋牌号中,带肋钢筋牌号后加E,关于这种钢筋混凝土结构
最新回复
(
0
)