首页
登录
职称英语
Even though trading in ivory has been outlawed by international agreement, some
Even though trading in ivory has been outlawed by international agreement, some
游客
2024-01-13
51
管理
问题
Even though trading in ivory has been outlawed by international agreement, some piano makers still use ivory, often obtained illegally, to cover piano keys. Recently, experts have devised a synthetic ivory that, unlike earlier ivory substitutes, has found favor with concert pianists throughout the world. But because piano makers have never been major consumers of ivory, the development of the synthetic ivory will therefore probably do little to help curb the killing of elephants, from whose tusks most natural ivory is obtained. Which one of the following, if true, most helps to strengthen the argument?
选项
A、Most people who play the piano but are not concert pianists can nonetheless easily distinguish between the new synthetic ivory and inferior ivory substitutes.
B、The new synthetic ivory can be manufactured to resemble in color and surface texture any of the various types of natural ivory that have commercial uses.
C、Other natural products such as bone or tortoise shell have not proven to be acceptable substitutes for natural ivory in piano keys.
D、The most common use for natural ivory is in ornamental carvings, which are prized not only for the quality of their workmanship but also for the authenticity of their materials.
E、It costs significantly less to produce the new synthetic ivory than it does to produce any of the ivory substitutes that scientists had developed previously.
答案
D
解析
根据合成象牙对抑制捕杀大象的活动收效甚微可以推出,合成象牙可能在许多方面无法替代自然象牙,(D)给出了这种可能性,因此(D)为正确答案。
转载请注明原文地址:https://tihaiku.com/zcyy/3358342.html
相关试题推荐
Althoughgeneticmutationsinbacteriaandvirusescanleadtoepidemics,somee
Althoughgeneticmutationsinbacteriaandvirusescanleadtoepidemics,so
Althoughgeneticmutationsinbacteriaandvirusescanleadtoepidemics,so
Althoughgeneticmutationsinbacteriaandvirusescanleadtoepidemics,so
Althoughgeneticmutationsinbacteriaandvirusescanleadtoepidemics,so
Althoughgeneticmutationsinbacteriaandvirusescanleadtoepidemics,so
Untilrecentlyitwasthoughtthatinkusedbeforethesixteenthcenturydidnot
Scientificresearchthatinvolvesinternationalcollaborationhasproducedpaper
ArecentreportdeterminedthatalthoughonlythreepercentofdriversonMaryla
AlthoughtheratioofphysicianstototalpopulationisaboutthesameintheUn
随机试题
April20th,2005
Inthe16thcentury,VenetianandFrenchglassmakersperfectedatechniqueo
Shoulddoctorseverlietobenefittheirpatients—tospeedrecoveryortocon
合同可以变更,但是当事人对合同变更的内容约定不明确的,推定为()。A.变
刀盘内更换刀具也是盾构法隧道施工过程中一项相对危险的作业工序,所以在更换刀具前工
简述无氧耐力的生理学基础及其训练方法。
胃癌在下列情况下不能行根治性手术A.肝、腹膜、肠系膜广泛转移时 B.肝总动脉淋
资本形成总额包括( )。A:固定资产形成总额 B:最终消费 C:货物净出口
发行保荐书应由保荐机构()签字,加盖保荐机构公章并注明签署日期。A:法定代表人
(2017年真题)担保的补充机制不包括()。A.提高借款利率 B.缩短借
最新回复
(
0
)