首页
登录
职称英语
A need for beauty, lightness, corrosion resistance, or other specific prope
A need for beauty, lightness, corrosion resistance, or other specific prope
游客
2024-10-30
38
管理
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. [br] 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://www.tihaiku.com/zcyy/3823674.html
相关试题推荐
Afewcommonmisconceptions:Beautyisonlyskin-deep.One’sphysicalasset
Aneedforbeauty,lightness,corrosionresistance,orotherspecificprope
Aneedforbeauty,lightness,corrosionresistance,orotherspecificprope
Babiesarebornwithaneyeforbeauty.Infantsonlyhoursoldwillchooseto
Babiesarebornwithaneyeforbeauty.Infantsonlyhoursoldwillchooseto
Itisbelievedthatthebeautyofthevalleyisbeyond______.A、compareB、compa
Shewasregardedasabeautywhenshewasatcollege.Aftergivingbirthtoaba
Thecompanypurchasedseveralcomputersprogrammedto______thespecifictasks
WhoistrueofLisa?[br][originaltext]Sally:Now,specificallyinthatsen6,
WhoistrueofLisa?[originaltext]Sally:Now,specificallyinthatsen6,youme
随机试题
Itissaidthat_____________________(财务主管无法解释公司银行账户上出现的误差).theheadofthefin
Lookatthefollowingresearchers(Questions36-40)andthelistoffindingsbelow
[originaltext]Nowadaysmoreandmorepeoplehavetospendlengthyhoursbef
Ourtalebeginstwodecadesago,whenagroupofDutchwomensetouttofind
中国革命统一战线的基础和依靠是( )A.工人和小资产阶级的联盟 B.工人和农
图示的晶体管均为硅管,测量的静态电位如图所示,处于放大状态的晶体管是()。A
当型钢悬挑梁与建筑结构采用螺栓角钢压板连接固定时,角钢的规格不应小于()。A.L
C注意到各项分母是一个以2为公比的等比数列,故待填项分母是32;每一项的分子=分母-1=31,选C。
关于历史文化名城保护规划内容的表述,不准确的是( )。A.应包括城市格局及传统
叶酸类似物抑制的反应有A.嘌呤核苷酸的从头合成 B.嘌呤核苷酸的补救合成 C
最新回复
(
0
)