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
32
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
Oncetheharddecisionshavebeenmadeabouthowtotreatapatient’scancer,doctorsfaceanevenmoredifficultquestion:how
ItAin’tEasyBeingGreenOverthesummer,IstayedatfourhotelsintheUnitedStates.Theywereallownedbydifferentco
Commutershavea40percentgreaterriskofendingupdivorced,accordingtoauniversitystudy.【C1】______youarereading
Commutershavea40percentgreaterriskofendingupdivorced,accordingtoauniversitystudy.【C1】______youarereading
Whenolderpeoplecannolongerremembernamesatacocktailparty,theytendtothinkthattheirbrainpowerisdeclining.Buta
A、Invitingherfriendstoagathering.B、Stayingathomewithherparents.C、Relaxingattheseashore.D、Workingonherpaper.C
Duringthenineteenthcentury,whenlittlewasknownaboutenvironmentalismandconservation,itwascommontohearpeopleinEu
A、HerIDcardandpassport.B、Herpersonalreferences.C、Hersocialsecuritynumber.D、Hercoverletter.B银行职员问女士是否带来了推荐信,言下之意即需
A、Dogshavecomfortedthousandsoflonelysoulsintheworld.B、Researchondogshasprovidedreferencesforhuman.C、Dogshave
OnefeatureofnewfoundwealthinthedevelopingworldhasbeentheembraceofWesternluxurylabels.Butsincetheglobalecono
随机试题
男性,58岁。糖尿病病15年。检查:双下肢水肿,尿蛋白(+++),空腹血糖8.0mmol/L(144mg/dl),餐后2小时血糖11.13mmol/L(200mg/dl),血压160/100mmHg。其诊断是
《药品经营管理规范》对零售企业陈列的要求有
下列()不能够支持高工资往往能带来高效率这一假设。
书法方面创出“瘦金体”的是()。
在综合布线系统中大量使用到双绞线,以下关于双绞线的特点及主要应用环境的描述中,正确的是()。
欧洲中石器岩画以西班牙的_______岩画最为突出。
平均差误法又称为()
中国人民抗日战争,是近代以来中华民族反抗外敌侵略第一次取得完全胜利的民族解放战争,总结中国人民抗日战争胜利的经验,主要有
已知大写字母“A”的ASCII码为八进制数101,ASCII码为十六进制数44对应的字母是()。
我学习英语大概有十年了。
最新回复
(
0
)