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
Perched among the highlands of western Cameroon, bordered by green mountains and cliff faces, Lake Nvos is a scene of breathtaki
Perched among the highlands of western Cameroon, bordered by green mountains and cliff faces, Lake Nvos is a scene of breathtaki
admin
2014-03-25
85
问题
Perched among the highlands of western Cameroon, bordered by green mountains and cliff faces, Lake Nvos is a scene of breathtaking beauty. But the picture cannot be trusted. A【B1】______study reveals that the lake could release a deadly cloud of carbon dioxide, capable of【B2】______entire communities around its shores.
The warning, from a team of scientists, comes nearly 20 years after the lake discharged an estimated 80m cubic metres of CO
2
into the【B3】______. Heavier than air, the cloud of gas【B4】______surrounding hillsides and villages. Silent and【B5】______, it exhausted the air of oxygen, killing hundreds of cattle and【B6】______the lives of more than 1,700 people up to 26 kilometres away. "It was one of the most mysterious【B7】______scientists have ever investigated," said George Kling, an ecologist at the University of Michigan.
Researchers called in after the 1986 tragedy discovered that the lake contained record levels of carbon dioxide. Gas【B8】______from the Earth’s magma(岩浆)was under such pressure at the bottom of the 200-metre deep lake that it dissolved until it【B9】______ max. A slight shake then released the dissolved gas as a dangerous bubble.
To prevent a recurrence, in 2001 engineers installed a pipe to suck CO
2
from the bottom of the lake and release it【B10】______into the air. A pipe was also installed at Lake Monoun, where an outbreak of CO
2
killed 37 people in 1984. The science team suggests the urgent installation of a further four pipes in each lake at a rate of one a year.
【B7】
选项
答案
disasters
解析
disasters,意为“灾难”。
转载请注明原文地址:https://kaotiyun.com/show/YKS7777K
0
大学英语四级
相关试题推荐
ItAin’tEasyBeingGreenOverthesummer,IstayedatfourhotelsintheUnitedStates.Theywereallownedbydifferentco
Ifyou’reinchargeofChristmasdinner,withallitsinterconnectedtasksandchallengesoftiming—whentopreheattheoven,wh
A、Experienceisexclusivelyimportantforsuccessintheindustry.B、Itstopmanagementpositionsareheldbywomen.C、Agentsin
A、Ababybearjumpedoutofabush.B、Theteamwasseparatedbythebears.C、Theteamannoyedagroupofbears.D、Abearappeare
Whatdoesitmeantoobeythelaw?That【B1】______onwhereyouare.Differentcultureshaveverydifferentviewsofobeyingthel
Losingweightishardenough.Keepingitoffisevenharder.NowanewstudybyresearchersatPennStatesuggeststhatthetech
A、Goouttoeatwithherparents.B、Findaplacetoliveneartheharbor.C、Getajobatarestaurant.D、Introducehimtoherpa
A、Sports.B、Travel.C、Foreignlanguages.D、Computergames.B对话中,女士询问男士有什么特殊的技能和兴趣,男士说自己擅长计算机,并能讲西班牙语,接着指出他非常喜欢旅行。由此可见,男士对旅行比较感兴趣
A、ThemanforgotAmy’sphonenumber.B、Amymetthemanthismorning.C、Amytoldthewomanhernewnumber.D、ThemanpickedupAm
Thefirstbicyclesweremadeofwood.Cyclemanufacturersthenswitchedtosteeltubes.Thesedays,forhigh-endbikeswherewei
随机试题
当病人神志消失,诊断心跳停止的指标是
Itwasessentialthattheapplicationforms______backbeforethedeadline.
第一期乳腺癌患者,其癌肿直径不超过()
公式1一D×1×13中,为()。
工程施工合同履行过程中,建设单位迟延支付工程款,则施工单位要求建设单位承担违约责任的方式可以是( )。
按16×16点阵存放国标GB2312—80中一级汉字(共3755个)的汉字库,大约占存储空间()。
根据规定,股份有限公司不得收购本公司的股票,但特殊情形是允许的。该特殊情形是()。
某甲入室行窃,正在翻箱倒柜时,听到室主回家开门的声音,于是赶紧越窗逃跑。某甲的行为属于()。
教师资格应具备哪些条件?你对教师聘任制度是怎样理解的?
据最新统计,在需要同等学力的十个不同的职业中,教师的平均工资五年前排名第九位,而目前上升到第六位;另外,目前教师的平均工资是其他上述职业的平均工资的86%,而五年前只是55%。因此,勃师工资相对偏低状况有了很大的提高。上述论证基于以下哪项假设?I.近
最新回复
(
0
)