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
There are three separate sources of hazard【C1】______to the use of nuclear reaction to supply us with energy. Firstly, the radioa
There are three separate sources of hazard【C1】______to the use of nuclear reaction to supply us with energy. Firstly, the radioa
admin
2013-11-29
50
问题
There are three separate sources of hazard【C1】______to the use of nuclear reaction to supply us with energy. Firstly, the radioactive material must travel from its place of manufacture to the power station【C2】______the power stations themselves are solidly built,the container used for transport of the material are not. Unfortunately, there are【C3】______only two methods of transport available,【C4】______road or rail,and both of these【C5】______close contact with the general public,【C6】______the routes are【C7】______to pass near, or even through,【C8】______populated areas.
Secondly, there is a problem of wastes. All nuclear power stations produce wastes which【C9】______will remain radioactive for thousands of years. It is【C10】______to deactive these wastes,and so they must be stored【C11】______one of the ingenious but cumbersome ways that scientists have invented. For example,they must be buried under the ground【C12】______sunk in the sea. However, these【C13】______do not solve the problem completely,they merely store it,since an earth-quake could【C14】______open the containers like nuts.
Thirdly, there is the problem of accidental exposure【C15】______to a leak or an explosion atthe power station.【C16】______with the other two hazards,this is not very likely and does not provide a serious【C17】______to the nuclear program,【C18】______it call happen,as the inhabitants of Harrisburg will tell you.
Separately, and during short periods.these three types of risk are no great cause for concern.【C19】______, though,and especially【C20】______much longer periods,the probability of a disaster is extremely high.
【C20】
选项
A、in
B、at
C、over
D、for
答案
C
解析
固定搭配,over long periods,故正确答案为C。
转载请注明原文地址:https://kaotiyun.com/show/emhO777K
0
考博英语
相关试题推荐
Theevolutionofsexratioshasproduced,inmostplantsandanimalswithseparatesexes,approximatelyequalnumbersofmalesa
Theevolutionofsexratioshasproduced,inmostplantsandanimalswithseparatesexes,approximatelyequalnumbersofmalesa
Onecanunderstandothersmuchbetterbynotingtheimmediateandfleetingreactionsoftheireyesand______toexpressedthoug
Stratford-on-Avon,asweallknow,hasonlyoneindustry—WilliamShakespeare—buttherearetwodistinctlyseparateandincre
Stratford-on-Avon,asweallknow,hasonlyoneindustry—WilliamShakespeare—buttherearetwodistinctlyseparateandincre
Theevolutionofsexratioshasproduced,inmostplantsandanimalswithseparatesexes,approximatelyequalnumbersofmalesa
Theevolutionofsexratioshasproduced,inmostplantsandanimalswithseparatesexes,approximatelyequalnumbersofmalesa
Stratford-on-Avon,asweallknow,hasonlyoneindustry--WilliamShakespeare--buttherearetwodistinctlyseparateandincreas
随机试题
张岱小品文的创作特色。
胃痛多见于()
关于舒林酸在体内的代谢的叙述哪一条是最准确的
消费者享有根据自己的要求和意愿自主选择商品或服务的权利,其自主权包括()。
大豆供应量增加,则豆油的价格( )。
以下有关公文的说法不正确的是()。
大学生说,幸福=理想实现+父母健康;某省委书记说,幸福=经济快速稳定增长+百姓生活水平提高+大学生顺利就业。幸福公式是什么?见仁见智。以上体现的哲学道理是()。
古罗马神话中的诸神大多出自()。(浙江师范大学2010)
设f(x,y)可微,且f’1(-1,3)=-2,f’2(-1,3)=1,令z=f(2x-y,y/x),则dz|(1,3)=用.
WhitePollutionWhitepollutionreferstoplasticpollution./Itisanewmemberofpollutionfamily,butitgrowsfast./
最新回复
(
0
)