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
2023-11-22
11
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 title that best expresses the idea of this passage is _________.
选项
A、New Uses for Plastics
B、How One Age Succeeds Another.
C、Advantages of Plastics
D、Limitations on the Use of Plastics
答案
D
解析
A项,C项很容易先排除,B项容易混淆,但文章内容主要讨论的不是时代变迁,而是论证塑料的局限性,它不是这个时代的标志物质。所以选择D项才是正确的。
转载请注明原文地址:https://tihaiku.com/zcyy/3209107.html
相关试题推荐
Afewcommonmisconceptions.Beautyisonlyskin-deep.One’sphysicalassets
Afewcommonmisconceptions.Beautyisonlyskin-deep.One’sphysicalassets
Afewcommonmisconceptions.Beautyisonlyskin-deep.One’sphysicalassets
Afewcommonmisconceptions.Beautyisonlyskin-deep.One’sphysicalassets
WhoistrueofLisa?[br][originaltext]Sally:Now,specificallyinthatsen6,
Aneedforbeauty,lightness,corrosionresistance,orotherspecificprope
Aneedforbeauty,lightness,corrosionresistance,orotherspecificprope
Babiesarebornwithaneyeforbeauty.Infantsonlyhoursoldwillchooseto
Babiesarebornwithaneyeforbeauty.Infantsonlyhoursoldwillchooseto
Babiesarebornwithaneyeforbeauty.Infantsonlyhoursoldwillchooseto
随机试题
[img]2014m3x/ct_eyyjscz2013j_eyyjscreadc_0174_20138[/img]DavidBlainecalls
Normallyastudentmustattendacertainnumberofcoursesinordertogradua
在抗原抗体反应中常用的稀释液及反应液为:A.0.95%氯化钠 B.0.85%氯
以下关于SMA沥青混合料谢伦堡沥青析漏和肯塔堡飞散试验描述正确的有()。A.谢伦
A.调磨锐边,树脂修复缺损 B.完成根管治疗后烤瓷冠修复 C.正畸牵引,根管
患者女性,27岁,孕1产0,孕40周,胎心140次/分,宫缩持续40秒,间歇3~
下列哪项是苍耳子具有的功效A.祛风除湿 B.利水消肿 C.平喘止咳 D.利
各种运输方式内外部的各个方面的构成和联系,就是( )。 A.运输系统
新加坡人民币NDF市场是亚洲最主要的离岸人民币远期交易市场之一。( )
财政收入的口径有大小之分,其中最小口径的财政收入是指()。A.国债收入 B.
最新回复
(
0
)