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
专升本
Human beings need to drink for their survival. Water ranks【61】on the list of all-time safe fluids. But not all water is as safe
Human beings need to drink for their survival. Water ranks【61】on the list of all-time safe fluids. But not all water is as safe
admin
2011-02-27
69
问题
Human beings need to drink for their survival. Water ranks【61】on the list of all-time safe fluids. But not all water is as safe as once【62】. Recent tests of water fountains in several U. S. cities show that many fountains give water containing large【63】of lead (铅) , a poisonous metal. A recent study of 900 water fountains in Los Angeles【64】that half of the fountains【65】contained higher amounts of lead than the【66】the experts consider【67】. In other cities【68】results of tests were announced; too much lead in many, though【69】, drinking fountains. Water doesn’t normally contain any lead, but when it passes through pipes, it can【70】. People who drink the water【71】the lead. An adult’ s body passes most of the lead【72】the body, but children’ s【73】retains more than half the lead【74】. This makes children more likely to be affected. Lead can damage the kidneys, cause【75】and impair learning and memory.【76】four million children in U. S. A. already have high levels of lead in their bodies. Most of this lead comes from【77】polluted with the metal. They can【78】it up from eating dirt or paint chips containing lead. In【79】to limit the lead in water fountains, officials recently suggested that fountains【80】to have too much lead be replaced or repaired. And that certainly requires a lot of money.
选项
A、were
B、found
C、tested
D、used
答案
C
解析
转载请注明原文地址:https://kaotiyun.com/show/fSvC777K
本试题收录于:
英语题库成考专升本分类
0
英语
成考专升本
相关试题推荐
柳永《八声甘州》(对潇潇暮雨洒江天)一词所表达的主要内容是()
However,whateveritsvirtues,theoldsharedliteracyculturehadgone...
Almosteveryonefailed______onthefirstday.
ThefirstAmerican______(perform)ofthisoperawasin1926.
Youcouldscarcelyhavefoundabetterpersonforthejob______Mr.Lee.
HolidaycelebrationsintheUnitedStatesoften______.Thejudge______.
Duringthesummervacationtherewillbearevisedscheduleofservicesfortheuniversitycommunity.Specificchangesforinter
Thestreetsareallwet.It______duringthenight.
Thankyouforhelpingme______themathproblem.
Thisstoryis【21】afarmhandandalandlord.Thefarmhandworkedhardalldaylong.【22】hegotvery【23】moneyandneverhadmuchto
随机试题
近代中国,提出“师夷长技以制夷”的思想家是
男,52岁,因患十二指肠球部溃疡合并幽门不全梗阻入院施行胃大部切除术。术中出血约600ml。心率92次/分,呼吸21次/分,血压98/60mmHg;血红蛋白105g/L。在输血问题上,正确做法是
解毒疗疮又具开窍醒神功效的药物是()
《景岳全书.血证》对血证的内容作了比较系统的归纳,将引起出血的病机提纲挈领地概括为
下列说法错误的是
把技术创新战略分为技术领先战略和技术跟随战略,是按照()标准来划分的。
萌萌怕猫,当她看到青青和小猫一起玩很开心时,她对小猫的恐惧也降低了,从社会学习理论的视角看,这主要是哪种形式的学习?()
下列程序段执行后,内存变量s1的值是s1="奥运会游泳比赛"s1=stuff(s1,7,4,"田径")?s1
A、美国人引进艾菊的经过B、专家如何解决艾菊问题C、引进艾菊时应该注意的问题D、动植物与其天敌的密切关系D
CulturalDifferencesbetweenEastandWestI.FactorsleadingtotheculturaldifferencesA.Differentculture【B1】______【B1】___
最新回复
(
0
)