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
A need for beauty, lightness, corrosion resistance, or other specific properties must be present before plastic can be considere
A need for beauty, lightness, corrosion resistance, or other specific properties must be present before plastic can be considere
admin
2010-01-10
79
问题
A need for beauty, lightness, corrosion resistance, or other specific properties must be present before plastic can be considered as competitors of brick, window glass, cement, cast iron, or steel, since volumetric prices are so low for the last substance and for wood. It is not particularly unfortunate that plastics do not appear economical for every use. There is no reason why industry should want to replace wood, brick, concrete, and metals when the latter are adequate and inexpensive. Too much has been written about the coming "Plastics and Light Metal Age," which is prophesized as the successor to the Stone Age, the Bronze Age, and the Iron Age. In the historical sequence of these earlier periods, there is logic in the quantitative sense; one age gave way to another when the use of a new material exceeded in quantity that of its predecessor. For the plastics and light metals, however, a different picture presents itself; less than 3,000,000 tons of all these materials are being produced annually, while steel production exceeded 90,000,000 tons last year and will probably not recede to less than 60,000,000 tons for many years. This is still the Iron Age or rather the Steel Age.
The writer regards the change to a "Plastic and Light Metal Age" in the near future as _________.
选项
A、necessary
B、desirable
C、improbable
D、logical
答案
C
解析
本文结尾“This is still the Iron Age or rather the Steel Age.”清楚地表明了作者的态度,作者认为近期向“塑料及轻质金属时代”转变是不大可能的。
转载请注明原文地址:https://kaotiyun.com/show/fv6K777K
0
专业英语四级
相关试题推荐
Inmanycountries,itisquitecommonthatuniversitieswouldassignstudentstoshareadormroom.Thefollowingarticlediscus
ThenumberofBritishuniversitiesofferingspecialistmodern-languagecoursesisinsharpdecline.Thiscollapsemightbepartl
Thefollowingtwoexcerptsareabouttheso-calledTigerMomparentingstyle:beingfiercelystrictmotherorfatherwhopushes
Some,parentsaresendingtheirpreschoolagechildrentotakeforeignlanguagecourses,withaviewtodevelopingtheirkids’f
(1)Acelebrityisawidely-recognizedorfamouspersonwhocommandsahighdegreeofpublicandmediaattention;therefore,one
(1)PessimismabouttheUnitedStatesrarelypaysoffinthelongrun.Timeandagain,whenAmericanshavefeltparticularlyglum
A、Ithelpsdevelopthegraduates’confidence.B、Itbringsapositiveeffecttojobhunters.C、Itgetsthegraduatesoffthecoac
PassageOne(1)Hehadallowedhertofreeherself;andinaminuteortwothemilkingofeachwasresumed.Nobodyhadbehe
Notonlywasthepapermoney______whichNapoleonsograciouslydistributedtotheunfortunate,butevensilverlostitsvalue
随机试题
功效有破血通经的药物有
2003年7月,年过七旬的王某过世,之前立下一份“打油诗”遗嘱:“本人已年过七旬,一旦病危莫抢救;人老病死本常事,古今无人寿长久;老伴子女莫悲愁,安乐停药助我休;不搞哀悼不奏乐,免得干扰邻和友:遗体器官若能用,解剖赠送我原求;病体器官无处要,育树肥花环境秀
不可以采用水雾系统进行灭火的是()。
根据《水电工程设计概算编制规定(2007年版),水电工程独立费用中的科研勘察设计费包括()。
关于古建筑的防火安全措施,下列说法正确的是()。
Intheworldofentertainment,TVtalkshowshaveundoubtedlyfloodedeveryinchofspaceondaytimetelevision.Andanyonewho
在人生态度的形成和变化过程中,起着主要作用的心理要素有()
阅读以下关于汇编语言方面的叙述,回答问题1至问题3,将答案填入对应栏内。[说明]汇编语言是面向机器的程序设计语言。在汇编语言中,用助记符代替机器码,用地址符号或标号代替地址码,直接同计算机的底层软件甚至硬件进行交互,具有代码优化、运行效率高等特点
在VisualFoxPro中,有如下程序:*程序名:TEST.PRGSETTAIXOFFPRIVATEX.Yx=“数据库”Y=“管理系统”DOsub1?X+YRE
Forthispart,youareallowed30minutestowriteanessayentitledHopefortheBest,PreparefortheWorstbycommentingont
最新回复
(
0
)