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
35
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
Ifthewoundedsoldierhadbeengivenfirst(),hewouldnothavedied.A、helpB、
WhatwassaltusedtodoinEgyptthousandsofyearsago?[br][originaltext]
为了照顾紧迫型作业,应采用短作业优先调度算法。
用未经焙烧的土坯、灰土和夯土作承重墙体的下列何者是正确的?A.无抗震设防的地区
工程质量检验中一般项目的合格率不低于75%,可以评定为合格。()
商业银行内部评级体系的验证应评估内部评级和风险参数量化的()。A.准确性
目前的大学生普遍缺乏中国传统文化的学习和积累。据国家教委利部分高校最近的一次凋查
根据《公司法》的规定,股东大会应当对所议事项的决定作成会议记录,下列应该在该会议
人力资源规划过程可分为多个步骤,人力资源规划的第一步是()。A.收集人力资源
下列有关对财务报表审计实施质量管理的说法中,错误的是()。A.项目组不包括
最新回复
(
0
)