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
2024-02-19
6
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
第三段落第四句对这个短语下了定义:Uranium tailings are solid materials in the slurry(or watery mixture) of depleted ore-bearing rock,chemicals,and liquids that result from milling.tailings的词义可以从它的词根判断出来,在这里是指“残渣,废料”。判断词义要注意词根的意思。
转载请注明原文地址:https://tihaiku.com/zcyy/3464149.html
相关试题推荐
ThelargeAmericanenergyservicecompany,Enron,failedafewyearsago.It
ThelargeAmericanenergyservicecompany,Enron,failedafewyearsago.It
Manycountriesaretryingto______theseriousproblemscreatedbytheenergyc
Billscompletedby2000laidspecialemphasis______recyclingandenergyconver
Itisreportedthatanincreasingnumberofpeople______buildingmorenuclear
Ifwegoonconsumingenergysowastefully,______areouroilwellswillbedri
Letushopethat______anuclearwar,thehumanracemightstillsurvive.A、int
Manyareawareofthetremendouswasteofenergyinourenvironment,butfai
Manyareawareofthetremendouswasteofenergyinourenvironment,butfai
Manyareawareofthetremendouswasteofenergyinourenvironment,butfai
随机试题
Thechancesofarepetitionoftheseunfortunateeventsare______indeed.A、distan
Inaddition,we____________(不应忽视)thateveryonewantsafriendlyandpeacefulso
肋间神经皮支的节段性分布,错误的是()A.第2肋间神经分布于胸骨角平面 B
下述符合腺垂体功能减退症的是A.ACTH下降,皮质醇增高 B.TsH下降,T、
无盆腔腹膜覆盖的是A、子宫直肠凹陷 B、子宫底部 C、输卵管峡部 D、卵巢
一个门店开营,制作了一个活动,一道小数计算题则计算结果正确,则可以享受到这个结果
人造防眩设施主要包括( )。A.防眩叶 B.防眩板 C.防眩网 D.防眩
下列哪项是肝癌定位检查中首选的方法A.B超 B.CT C.AFP测定 D.
我们这个国家的未来,取决于正在茁壮成长的青年、少年、孩童。因为科技与商业的进步需
反密码子UAG识别mRNA分子上的密码子是( )。A.GTC B.ATC
最新回复
(
0
)