首页
登录
职称英语
The most popular organic gem is the pearl. A pearl is the response of a mari
The most popular organic gem is the pearl. A pearl is the response of a mari
游客
2024-01-02
51
管理
问题
The most popular organic gem is the pearl. A pearl is the response of a marine mollusk to the presence of an irritating impurity accidentally introduced into its body; a cultured pearl is the result of the intentional insertion of a mother-of-pearl bead into a live mollusk. Whether introduced accidentally or intentionally, the pearl-making process is the same: the mollusk coats the irritant with a substance called nacre. Nacre is composed chiefly of calcium carbonate. Because very few natural pearls are now on the market, most pearls used in fine jewelry are cultured. These include "Biwa" pearls and most other freshwater pearls. Cultured pearls are not easily distinguished from natural pearls except by an expert. [br] Which of the following people could tell the difference between a cultured pearl and an organic pearl?
选项
A、Scuba diver.
B、Fisherman.
C、Jeweler.
D、Clerk.
答案
C
解析
见文章最后一句:Cultured pearls are not easily distinguished from natural pearls except by an expert.只有专家才能区分出天然珍珠和人工培育的珍珠。珠宝商当然应是这类专家,所以选项C正确。A.Scuba diver戴水肺的潜水员B.Fisherman 渔民和 D.Clerk职员当然不是鉴别珠宝的行家了。
转载请注明原文地址:https://tihaiku.com/zcyy/3326238.html
相关试题推荐
TOEFLiBTWriting.Inthisintegratedwritingtask,youwillwritearesponseto
1Thejazzthatwaspopularduringthe1930sand1940swasknownas"bigband"o
RosaBonheurAshelivedinParisandwasBoneofthemostpopularCartistsofhe
Themilkofeitherthecowor______isapopulardairyproductinmostplaces.A、b
Thefirstpunkrockofthe1960s______theaggressiveresponseoftheAmericanga
TOEFLiBTWriting.Inthisintegratedwritingtask,youwillwritearesponseto
AirPollutionandtheImportanceofTreesAirpollutionisnotapopular
Airpollutionisnotapopularsubject,whichiswhylittlenoticehasbeentake
国内私企积极响应国家“走出去”的经济战略主动出击,寻找适合的国外并购对象,跨国并购持续升温。Inresponsetothecountry’s"goin
Themostpopularorganicgemisthepearl.Apearlistheresponseofamari
随机试题
Theoldmotherfeltworriedabouttheyoungcouplewhoalwayscouldn’tsee______
[originaltext](16)Thereareafewdifferencesintheorganizationofmemor
[originaltext]Thecomputervirusisanoutcomeofthecomputerovergrowthi
盆腔炎性疾病症状轻者,抗生素治疗方案可选用A.左氧氟沙星400mg口服,每日1次
有限空间作业气体检测是保证作业安全的重要手段之一,有限空间作业必须坚持“先检测,
我们自古以来,许多仁人志士,他们的爱国壮志情怀是“苟利国家生死以()A、岂因
A.广藿香B.荆芥C.薄荷D.益母草E.穿心莲主要含挥发油,有抗真菌作用的药材是
有关技能薪酬制的前提表述错误的是( )。A.明确对员工的技能要求 B.制定实
5.10 5月10日1时56分,搭载天舟四号货运飞船的长征七号遥五运载火箭
某施工单位承担一水电站工程项目施工,其中施工单位可以分包的工程项目是( )。A.
最新回复
(
0
)