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
43
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、considered
B、revealed
C、thought
D、learned
答案
B
解析
转载请注明原文地址:https://kaotiyun.com/show/5SvC777K
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
《氓》选自《诗经》中的
Itisastonishingthatapersonofyourintelligence______becheatedsoeasily.
Overthetraditionalfestivalpeoplevisiteachotherand______greetings.
Theteacher’s______tomystatementaboutthispoetledmetoreadwidelyaboutpoems.
Any______(propose)thatNormanshouldbedismissedmustberesisted.
Ithoughthisspeechwouldbeinteresting,butitturnedoutthatthemorehetalked,______.
Becausewehadnotbookedahotel,thefirstthingwedidwhenwereachedtheIslandwastolookfor______.
Thejuryfound______.Asaresultofthecourtdecision,thefamilywillreceive______.
International______mustbereducedbeforethistreatyissigned.
Alltheafternoonheworkedinhisstudywiththedoor______.
随机试题
TheGreatCharterof1215isalsoknownas______.()
A、MadisonDriveCapitolHill—TheWashingtonMonument—TheWhiteHouse.B、TheWashingtonMonument—CapitolHill—TheWhiteHouse.C、
A.无痛性全程肉眼血尿B.终末血尿伴膀胱刺激征C.初始血尿D.疼痛伴血尿E.血红蛋白尿泌尿系结核血尿特点是
产品检验机构计量认证的内容有()。
微机中使用的鼠标器一般连接在计算机主机的()上。
某公司发生以下情况:(1)公司接受上级有关单位审核,发现一张购买计算机的发票,其“金额”栏中的数字有更改现象,经查阅相关买卖合同、单据,确认更改后的金额是正确的,更改处盖有出具单位的相关印章。公司以该发票为原始凭证进行账务处理并入账。(2)
信用风险是指债权人或交易对手未能履行合同所规定的义务或者信用质量发生变化.影响金融产品价值,从而给债务人或金融产品持有人造成经济损失的风险。()
《夏小正》
结构化程序所要求的基本结构不包括()。
A—socialisteconomyB—capitalisteconomyC—collectiveeconomyD—plannedeconomyE—controlledeconomy
最新回复
(
0
)