首页
登录
职称英语
For hundreds of years, pearl divers have gathered pearls directly from mollusks
For hundreds of years, pearl divers have gathered pearls directly from mollusks
游客
2024-01-13
19
管理
问题
For hundreds of years, pearl divers have gathered pearls directly from mollusks on the seafloor. This is an extremely risky profession, exposing the divers to risks of drowning, air embolism, and shark attacks. Still, as long as society demands authentic cultured pearls, these brave divers must continue to risk their lives. Which of the following statements, if true, most seriously weakens the conclusion above?
选项
A、Shark attacks on pearl divers have decreased steadily over the last three decades because of declining shark populations.
B、Cultured pearls are generally considered more beautiful than those made by artificial means.
C、Robotic pearl harvesters can gather pearls faster and at less cost than human divers, although they may disturb aquatic communities.
D、Part of the value of cultured pearls derives from the exotic way in which they are obtained.
E、With the proper equipment and training, a diver employing scuba gear can harvest three times as many pearls per hour as can a free air diver.
答案
C
解析
This answer provides an alternative means by which society can obtain cultured pearls without exposing divers to risk.
转载请注明原文地址:https://tihaiku.com/zcyy/3359559.html
相关试题推荐
Thousandsofprotestersgatheredonthestreets,demandingthatconstructionof
Forhundredsofyears,pearldivershavegatheredpearlsdirectlyfrommollusks
Coralreefsareoneofthemostfragile,biologicallycomplex,anddiversem
Coralreefsareoneofthemostfragile,biologicallycomplex,anddiversem
Chris:Hundredsoftrafficaccidentsannuallyareattributabletothepoorcondi
Parasiticwaspslaytheireggsdirectlyintotheeggsofvarioushostinsectsin
Theunderlyingphysicalprinciplesthatcontrolthemidairgyrationsofdiversa
Nearlyunrivaledintheirbiologicaldiversity,coralreefsprovideahostofbe
Hundredsofspeciesoffishgenerateanddischargeelectriccurrents,inbursts
METAMORPHOSIS:A、diverseactivityB、recurringmovementC、pausefrompressureD、pr
随机试题
Hungryprehistorichunters,notclimatechange,droveelephantstoextinctio
下列关于PFI和BOT的说法,正确的是()。A:BOT方式主要用于基础设施或市
孕妇为什么容易发生DIC?
( )是指存券银行不通过基础证券发行公司,直接根据市场需求和自有基础证券的数量
关于青霉素的叙述错误的是A.广谱抗生素 B.窄谱抗生素 C.易引起过敏反应
①我国的GDP总量早已位居世界前例,我国既是最大的石油进口国,也是最大的货币贸易
比较典型的反转形态包括()。A.头肩形 B.双重顶 C.双重底 D
青霉素可以作为()的首选药。A.溶血性链球菌感染 B.肺炎链球菌感染
A工程公司以PC形式总承包了一日产5000t/d水泥熟料生产线的建设,合同约定A
当由于地形限制或填筑堤身较高,不宜采用水平分层填筑法或竖向分层填筑法这两种方法施
最新回复
(
0
)