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
2024-02-06
11
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] According to the passage, the term "uranium mine tailings" refers to_____.
选项
A、the uranium that is taken from a mine
B、the ponds that hold liquid radioactive wastes
C、solid wastes that result from the mining of uranium
D、dangerous radon gas that escapes from uranium mines
答案
C
解析
词汇题。短文第三段中间提到Uranium tailings are solid materials in theslurry(or watery mixture)of depleted ore—bearing rock;chemicals,and liquids thatresult from milling.意思是:铀废料是加工所产生的由废弃的矿岩石、化学物和液体所组成的流质混合物中的固体物质。tailings在这里指“残渣,废料”。故选项C正确。
转载请注明原文地址:https://tihaiku.com/zcyy/3428117.html
相关试题推荐
[originaltext]Economistsacrosstheworldareexpressingconcernsaboutris
[originaltext]Economistsacrosstheworldareexpressingconcernsaboutris
[originaltext]Economistsacrosstheworldareexpressingconcernsaboutris
[originaltext]M:(12)TheEnergyMinisterannouncedyesterdaytheconstructionof
Themostpressingnuclearenergyissueisthedisposalofnuclearwaste.Eve
Themostpressingnuclearenergyissueisthedisposalofnuclearwaste.Eve
Themostpressingnuclearenergyissueisthedisposalofnuclearwaste.Eve
Themostpressingnuclearenergyissueisthedisposalofnuclearwaste.Eve
[originaltext]Nuclearradiationhasacertainmysteryaboutit,partlybeca
[originaltext]Nuclearradiationhasacertainmysteryaboutit,partlybeca
随机试题
Whatkindofroomdoesthecustomerwanttoreserve?[originaltext]Customer:Can
[originaltext]W:Hi,Tim.I’mreallysorrytohearaboutyourdad.Mysincerest
Whodoesn’tlovebeinginlove?Atruelovelistenstoyoutalkaboutwork,
下列方法中,不能测定砌体或砂浆强度的是( )。A、回弹法测砂浆的抗压强度
下列各项中,不符合内部牵制的要求的是()。A、出纳人员管票据 B、出纳人员
持续时间较久的典型的急性肾小球肾炎患儿的临床表现是A.水肿 B.高血压 C.
公安政策是党和国家的意志在公安工作中的体现,是党和国家为实现公安工作任务而规定的
预防乙脑的关键是A.防蚊灭蚊 B.易感人群普遍接种疫苗 C.幼猪接种疫苗
(2019年真题)根据土地增值税法律制度的规定,下列各项中,在计算土地增值税计税
银行承兑汇票的承兑银行,应当按照票面金额向出票人收取()的手续费。A:千分之一
最新回复
(
0
)