首页
登录
职称英语
[originaltext] A silver dollar is not worth a dollar--nor is any other silve
[originaltext] A silver dollar is not worth a dollar--nor is any other silve
游客
2023-09-12
54
管理
问题
A silver dollar is not worth a dollar--nor is any other silver coin really worth its face value. Silver coins are made of an alloy--a mixture of 10 per cent copper and 90 per cent silver---which lasts much longer in circulation than pure silver would. A silver dollar contains 90 cents worth of silver and a dime has 9 cents worth. It takes only a pennyworth of silver to make a nickel.
This was not the case in 1792, when the United States began minting coins of pure gold and silver. Citizens were welcome to stop in anytime with gold or silver in any form--cups, vases, or even gold fillings from their teeth--and have it melted down for spending money.
Today the mints in Philadelphia and Denver earn a yearly profit of about $40 million. Most of this comes from using alloys rather than pure silver in the production of the $2.5 billion worth of coins circulating in the United States. The Philadelphia plant also manufactures coins for foreign countries. In a recent year almost 130 million coins were made for the use of foreign governments.
选项
A、90% copper and 10% silver.
B、90% silver and 10% copper.
C、90% silver, 9% copper, and 1% lead.
D、None of these.
答案
B
解析
数字细节题 文章明确说明了当今的银币是由10%的铜与90%的银铸成的。
转载请注明原文地址:https://tihaiku.com/zcyy/3008445.html
相关试题推荐
[originaltext]WhenlittleMidoriwastwoyearsold,sheoftenClimbedontot
[originaltext]WhenlittleMidoriwastwoyearsold,sheoftenClimbedontot
[originaltext]Togetadriver’slicenseintheU.S.,allstatesrequiretha
[originaltext]Togetadriver’slicenseintheU.S.,allstatesrequiretha
[originaltext]Togetadriver’slicenseintheU.S.,allstatesrequiretha
[originaltext]W:John,haveyouchosenaphysicaleducationclassyetthisseme
[originaltext]W:John,haveyouchosenaphysicaleducationclassyetthisseme
[originaltext]W:Oh,Rex,Ihavebeenlookingforyouforhours.Wherehaveyou
[originaltext]W:Oh,Rex,Ihavebeenlookingforyouforhours.Wherehaveyou
[originaltext](32)Thefamilyischanging.Inthepast,grandparents,parent
随机试题
(1)Imaginethatyoucouldrewindtheclock20years,andyou’re20yearsyoun
It’stemptingtospendslowworkdaysthisholidayseasonshoppingforgifts
患者,男性,68岁,脑梗死后2个月,用汉语失语成套测验评估时,发现患者自发语不流
男,60岁,晨练时晕倒在地,如果你恰在身边,判断患者心跳停止最简便迅速的方法是A
各省、自治区、直辖市的环境保护部门放射防护监督的对象是A.本辖区内的放射性同位
社区矫正的定位是“一个目标,两个方面”,其中“一个目标”指的是()。A.帮助
一般质量事故是指,造成()万元以上1000万元以下直接经济损失的事故。A、1
有一项年金,前3年无流入,后5年每年年初流入500万元,假设年利率为10%,已知
2015年末,某国未清偿外债余额为2000亿美元,其中,1年及1年以下短期债务为
同一厂家、同一类型、同一钢筋来源的成型钢筋,不超过30t为一批,每批中每种钢筋牌
最新回复
(
0
)