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
26
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://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
56.Whenyouareinthebusinessofsendingspacecrafttootherplanets,itis
Weateinthe______restaurant.A、newunusualChineseB、unusualnewChineseC、Chin
下列风管材质中,不属于非金属风管的是()。A.玻璃纤维复合板风管 B.玻璃钢
在一个设计项目开始两个月后,客户要求对项目产品进行修改并在没有通知项目经理的前提
煤矿各地点的实际需要风量,必须使该地点的风流中的瓦斯.氢气和其他有害气体的浓度.
尽管借款人目前有能力偿还贷款本息,但存在一些可能对偿还产生不利影响因素的贷款是(
证券期货经营机构应当制定具体、有效的事前风险防范体系、()和事后追责机制,对
房屋租赁合同都应当采用()形式。A.书面 B.电子 C.口头 D.当事
水谷精气与清气相结合,关系到( )。A.宗气的生成 B.卫气的生成 C.营
塑料垃圾难以被自然分解,这一直令人类头痛。近年来,许多易于被自然分解的塑料代用品
最新回复
(
0
)