首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
Germs(细菌)on Banknotes People in different countries use different types of money: yuan in China, pesos in Mexico, pounds in t
Germs(细菌)on Banknotes People in different countries use different types of money: yuan in China, pesos in Mexico, pounds in t
admin
2012-12-06
54
问题
Germs(细菌)on Banknotes
People in different countries use different types of money: yuan in China, pesos in Mexico, pounds in the United Kingdom, dollars in the United States, Australia and New Zealand. They may usedifferent currencies, but these countries, and probably all countries, still have one thing in (51) (变化): germs on the banknotes.
Scientists have been studying the germs on money for well over。100 years. At the turn of the 20th (52) , some researchers began to suspect that germs living on money could spread disease.
Most studies of germy money have looked at the germs on the currency (53) one country. In a new study, Frank Vriesekoop and other researchers compared the germ populations found on bills of different (54) .
Vriesekoop is a microbiologist at the University of Ballarat in Australia. He led the study, which compared the germ populations found on money (55) from 10 nations. The scientists studied l,280 banknotes in total; all came from places where people buy food, like supermarkets, street vendors and cafes, (56) those businesses often rely on cash.
Overall, the Australian dollars hosted the fewest live bacteria—no more than 10 per square centimeter. Chinese yuan had the (57) (变化)—about 100 per square centimeter. Most of the germs on money probably would not cause harm.
What we call "paper money" (58) (变化)isn’t made from paper. The U.S. dollar, for example, is printed on fabric that is mostly cotton. Different countries may use different (59) to print their money. Some of the currencies studied by Vriesekoop and his team, such as the American dollar, were made from cotton. Others were made from polymers.
The three (60) with the lowest numbers of bacteria were all printed on polymers. They included the Australian dollar, the New Zealand dollar and some Mexican pesos.
The (61) (变化)currencies were printed on fabric made mostly of cotton. Fewer germs lived on the polymer notes. This (62) (变化) suggests that germs have a harder time staying alive on polymer surfaces. Scientists need to do more studies to understand (63) (变化)germs live on money—and whether or not we need to be concerned. Vriesekoop is now starting a study that will (64) the amounts of time bacteria can stay alive on different types of bills.
Whatever Vriesekoop finds, the fact remains:Paper money (65) (变化) germs. We should wash our hands after touching it; After all, you never know where your money’s been. Or what’s living on it.
选项
A、some
B、another
C、others
D、other
答案
D
解析
转载请注明原文地址:https://kaotiyun.com/show/9LQd777K
本试题收录于:
职称英语理工类C级题库职称英语分类
0
职称英语理工类C级
职称英语
相关试题推荐
Itisobviousthatithasbeentoolatetotakeaction.
Canadalkea:WhataGreatPlaceforYoutoShopTherearemanydifferentstoresthatpeoplegotoinordertobuyvarioushou
AcandidatesforclinicaltrialsBduringthetrialCmedicalknowledgeDinhumansEbeforeparticipationFforsomepatients
TryingtoFindaPartnerOneofthemoststrikingfindingsofarecentpollintheUKisthatofthepeopleinterviewed,one
SomeplantsandanimalsdevelopsuperiorcharacteristicssothattheymayTheauthorcitesthebehaviorofwarm-bloodedmammals
Throughouttheworldthereisashortageofhumanorgansfortransplants.InBritain,forexample,6000peoplearewaitingforo
Recentpressureatworkmayaccountforhisbehavior.
Acetateisoneofthemostimportantartificialfibers.
ArtificialSpeechBecausespeechisthemostconvenientformofcommunication,inthefuturewewantessentiallynaturalcon
Thecitycentrewaswipedoutbythebomb
随机试题
下列不属于有效领导者具有的共同特性的是()
工作簿是Excel中存储电子表格的一种基本文件,其系统默认扩展名为.xls。()
机体的内环境是指
妊娠腹痛的发病机制主要是
A.阻止维生素K的利用B.抑制血小板聚集C.激活纤溶酶D.增强抗凝血酶Ⅲ的作用E.抑制环加氧酶双香豆素的作用机制是
复式记账的基本理论依据是资产=负债+所有者权益。( )
案例九:李均夫妇有一个女儿,今年8岁,为了让孩子在今后的成长过程中接受高质量的教育,李军夫妇打算为孩子建立教育储备金。李均一家的财务状况为:李均今年30岁,是某贸易公司的业务员,每月税前工资为12000元。妻子周燕今年28岁,就职于某事业单位,每月税前收
假设银行系统的原始存款额为1000亿元,法定存款准备金率为8%,超额准备金率为2%,现金漏损率为10%。根据以上资料,回答下列问题:如果超额准备金率和现金漏损率都为0,银行系统的存款乘数为()。
我国开展综合利用的潜力本来很大,综合利用的产业应该有更大发展,但并没有收到预期的效果。其中重要原因之一,是()的问题。
环境学家认为,随着许多野生谷物的灭绝,粮食作物的遗传特性越来越单一化,这是人类面临的最严重的环境问题之一。人类必须采取措施,阻止野生谷物和那些不再种植的粮食作物的灭绝,否则,不同遗传特性的缺乏,很可能使我们的粮食作物在一夜之间遭到毁灭性破坏。例如,1980
最新回复
(
0
)