首页
登录
职称英语
The most pressing nuclear energy issue is the disposal of nuclear waste. Eve
The most pressing nuclear energy issue is the disposal of nuclear waste. Eve
游客
2023-07-18
49
管理
问题
The most pressing nuclear energy issue is the disposal of nuclear waste. Even if all the reactors in existence were completely safe to operate, there would still be unsolved issue of what to do with the waste from generating electricity by means of nuclear energy. Those who claim that they feel comfortable with nuclear energy are, none the less, concerned about waste disposal methods. Seven states, including California, have put the building of nuclear plants on hold until legislators are convinced that there is a safe way to dispose of the radioactive waste from the plants.
In the meantime, pools of liquid waste and piles of solid waste from private industry and governmental bomb production grow. Since 1962, the volume of radioactive waste produced by the nuclear power industry has amounted to about 4,300 cubic meters. By the end of the twentieth century, if production continues at the same rate, there will be 40,000 cubic meters of nuclear waste.
Power plants and bomb-making are not the only sources of waste. Uranium mining and milling operations have dumped 24 million metric tons of radioactive tailing wastes at dumping sites around the nation. At places where uranium is currently milled, there is another 100 million metric tons of tailings. Uranium tailings are solid materials in the slurry (or watery mixture) of depleted ore-bearing rock, chemicals, and liquids that result from milling. Usually, the slurry is piped to holding ponds. When a uranium mill goes out of business, the ponds are left to evaporate, uncovering piles of dried tailings. Uncovered piles of tailings give off radioactive radon gas. Once in the air, the gas finds its way into the water supply and the food chain. Consequently, many nuclear experts agree that uranium mill tailings may be more dangerous than high-level radioactive wastes from reactors and bombs. [br] The central idea of the passage is to point out potential problems regarding ______.
选项
A、effects of high-level radiation
B、operation of nuclear power plants
C、fallout from the explosion of nuclear weapons
D、various sources of radioactive wastes
答案
D
解析
文章的开头便交代了主题:The most pressing nuclear energy issue is the disposal of nuclear waste.而且“核废料”显然是文中的核心词语。A项说的是高辐射等问题5B项说的是核电站运营问题;而C项说的是核武器,显然都不对,故选D。
转载请注明原文地址:https://tihaiku.com/zcyy/2847883.html
相关试题推荐
ThelargeAmericanenergyservicecompany,Enron,failedafewyearsago.It
ThelargeAmericanenergyservicecompany,Enron,failedafewyearsago.It
[originaltext]M:Ihaveneverheardsuchafascinatinglectureonsolarenergy.
Ifwegoonconsumingenergysowastefully,______areouroilwellswillbedri
______thefirsttousenuclearweapons.A、AtnotimeChinawillbeB、NeverChina
Manyareawareofthetremendouswasteofenergyinourenvironment,butfai
Manyareawareofthetremendouswasteofenergyinourenvironment,butfai
Manyareawareofthetremendouswasteofenergyinourenvironment,butfai
Manyareawareofthetremendouswasteofenergyinourenvironment,butfai
[originaltext]Economistsacrosstheworldareexpressingconcernsaboutris
随机试题
Whyisthewomancalling?[br][originaltext]W:Hello.ThisisAnnaParkercall
Lazinessisasin,everyoneknowsthat.Wehaveprobablyallhadlecturespo
Bytradition,theleaderofthemajoritypartyisappointed______bytheSovereig
NinetypercentofAmericansknowthatmostoftheircompatriotsareoverweig
Don’tletvacationsorbusinesstravelsideline(使退出)yourexerciseroutine.
准确测定胰岛素原的浓度仍然比较困难,因为A.血浆中胰岛素原浓度低 B.不易获得
形成酸雨的主要污染物是A.CO和NO B.CO和O C.NO和CO D.H
A.积血 B.出血 C.破裂性出血 D.血肿 E.漏出性出血微循环的毛细
下列选项中,属于欺诈发行股票、债券犯罪侵犯客体的是()。 Ⅰ.国家对证券市场
种植体与骨组织结合的第三阶段中,种植体周围开始出现( )。A.成骨细胞 B.
最新回复
(
0
)