首页
登录
职称英语
[A]lengthy[I]transparent [B]transformation[J]deliberately [C]absorpt
[A]lengthy[I]transparent [B]transformation[J]deliberately [C]absorpt
游客
2024-09-05
36
管理
问题
[A]lengthy[I]transparent
[B]transformation[J]deliberately
[C]absorption[K]bestow
[D]bursting[L]imperfections
[E]combat[M]recyclable
[F]permanently[N]neutralization
[G]appreciable[O]corrode
[H]manipulate
The Stone Age, the Iron Age. Entire epochs have been named for materials. So what to call the decades ahead? The choice will be tough. Welcome to the Age of Superstuff. Material science—once the least sexy technology—is【C1】______with new, practical discoveries led by superconducting ceramics(超导陶瓷)that may revolutionize electronics. But superconductors are just part of the picture: from house and cars to cook pots and artificial teeth, the world will someday be made of different stuff. Exotic plastics, glass and ceramics will shape the future just as surely as have genetic engineering and computer science.
The key to the new materials is researchers’ increasing ability to【C2】______substances at the molecular level. Ceramics, for example, have long been limited by their brittleness. But by minimizing the microscopic【C3】______that cause it, scientists are making far stronger ceramics that still retain such qualities as hardness and heat resistance. Ford Motor Co. now uses ceramic tools to cut steel. A firm called Kyocera has created a line of ceramic scissors and knives that stay sharp for years and never rust or【C4】______.
A similar【C5】______has overtaken plastics. High-strength polymers now form bridges, ice-skating rinks and helicopter rotors. And one new plastic that generates electricity when vibrated or pushed is used in electric guitars, touch sensors for robot hands and karate jackets(空手道外衣)that automatically record each punch and chop. Even plastic litter, which once threatened to【C6】______blot the landscape, has proved amenable to molecular tinkering. Several manufacturers now make biodegradable forms; some plastic six-pack rings for example, gradually decompose when exposed to sunlight. Researchers are developing ways to make plastics as【C7】______as metal or glass. Besides, composites—plastic reinforced with fibers of graphite or other compounds—made the round-the-world flight of the voyager possible and have even been proved in【C8】______: a helmet saved an infantryman’s life by deflecting two bullets in the Grenada invasion.
Some advanced materials are old standard with a new twist. The newest fiberoptic cable that carry telephone calls cross-country are made of glass so【C9】______that a piece of 100 miles thick is clearer than a standard window pane.
But new materials have no impact until they are made into products. And that transition could prove difficult, for switching requires【C10】______research and investment. It can be said a firmer handle on how to move to commercialization will determine the success or failure of a country in the near future. [br] 【C1】
选项
答案
D
解析
根据句子结构可知,空格处缺少动词,且应为进行时态。该句句意为:以前最不引人注意的材料科学,随着一些以超导陶瓷为首的新的、实用性的发现而______起来。备选动词中的bursting“突然出现,突然活跃起来”符合句意,故[D]为答案。
转载请注明原文地址:https://www.tihaiku.com/zcyy/3745171.html
相关试题推荐
A.digB.avoidsC.deliberatelyD.rememberingE.judgingF.eventG.f
A.digB.avoidsC.deliberatelyD.rememberingE.judgingF.eventG.f
A.digB.avoidsC.deliberatelyD.rememberingE.judgingF.eventG.f
A.digB.avoidsC.deliberatelyD.rememberingE.judgingF.eventG.f
A.digB.avoidsC.deliberatelyD.rememberingE.judgingF.eventG.f
A.digB.avoidsC.deliberatelyD.rememberingE.judgingF.eventG.f
A.digB.avoidsC.deliberatelyD.rememberingE.judgingF.eventG.f
A.digB.avoidsC.deliberatelyD.rememberingE.judgingF.eventG.f
A.digB.avoidsC.deliberatelyD.rememberingE.judgingF.eventG.f
A.digB.avoidsC.deliberatelyD.rememberingE.judgingF.eventG.f
随机试题
Themaintopicoflastweek’smeetingwassuggestionboxes.Alldepartments
知识产权公共服务按照()可分为申请代理援助服务、咨询服务、信息服务、展示交易服务
游客被()刺伤后一般有红肿热痛现象,可能发生淋巴管炎和淋巴结炎。A.毒蛇 B
患者男性,24岁,因发烧、厌食、恶心2周,皮肤黄染2周入院。检查:T37.5℃,
进行含量均匀度检查时,取供试品A.20个 B.1个 C.2个 D.5个
在选拔具有较高人际沟通能力的员工时,宜采用( )的方法。A.案例分析 B.
简述现代企业人力资源管理各个历史发展阶段的特点。
(2017年真题)氯丙嗪化学结构名( ) A.2-氯-N、N-二甲基-10H
某市卫生行政部门计划对该市65周岁以上老年人进行口腔健康状况调查,并依据调查结果
(2019年真题)某债券的收益率为0.12,风险系数为β为1.3,假定无风险收益
最新回复
(
0
)