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
8
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] 【C10】
选项
答案
A
解析
由句子结构可知,该空缺少形容词作定语。结合句意:这种转化是很困难的,产品调整需要研究和资本投入。备选形容词中的lengthy“长期的”符合句意,故[A]为答案。
转载请注明原文地址:https://tihaiku.com/zcyy/3745180.html
相关试题推荐
A.arisesB.biasC.characteristicD.convictedE.deliberately
A.arisesB.biasC.characteristicD.convictedE.deliberately
"Hewas,Samanthathought,beingdeliberatelyobtuse,nodoubtinretaliationfo
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
Didyoueverhavesomeone’snameonthetipofyourtongueandyetyouwere
Technologyisanothergreatforceforchange.Inpart,technologyhascaused
[originaltext]W:SoyouknowwhattheWhiteLaneLawis?M:IntheUnitedState
[originaltext]InternationalinvestigatorshavepublishedaphotoofalargeBuk
“桃李不言,下自成蹊”,这句话所体现的德育方法是()A.说理教育 B.榜样示
下列选项中,属于旅游法调整对象的有( )。A.江苏省旅游局批准设立四海旅行社的
本公文属于:() A.解答性批复 B.肯定性批复 C.否定性批复 D
中国茶文化是中国制茶、饮茶的文化。中华茶文化源远流长,博大精深,不但包含物质文化
在整个中学阶段哪个年级是中学思维发展的关键期?() A.初一B.初二C.
施工企业能够形成建筑市场诚信行为优良信用信息记录的是()。A.合同正常履约
最新回复
(
0
)