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
考研
To most of us, nuclear is an all-or-nothing word. Nuclear war is unthinkable. Nuclear weapons must never be used. Nuclear power
To most of us, nuclear is an all-or-nothing word. Nuclear war is unthinkable. Nuclear weapons must never be used. Nuclear power
admin
2019-08-01
20
问题
To most of us, nuclear is an all-or-nothing word. Nuclear war is unthinkable. Nuclear weapons must never be used. Nuclear power plants must be perfectly safe. Nuclear meltdown is the end of the world. "Going nuclear" means you’ve hit the fatal button, and there’s no turning back.
Two days ago, I saluted the reactor containment vessels at the Fukushima Daiichi power plant for surviving the earthquake and tsunami. "Everything that could go wrong did", I wrote. Hours later, an explosion damaged one of the containers. That was a corollary to Murphy’s Law: Anyone who says "Everything that could go wrong did" is overlooking something else that could go wrong.
The nuclear industry likes to think failure isn’t an option. It builds power plants according to a principle called "defense in depth." Under this principle, as articulated by the Nuclear Energy Agency, "consecutive and independent levels of protection ... would all have to fail" before harm could happen. But the levels of protection at Fukushima weren’t really independent. They were all taken out by the same chain of events. The quake triggered the tsunami, knocking out the diesel generators. The cooling system’s power failure led to explosions that knocked out the cooling system’s conduits. The overheated reactors produced hydrogen explosions that blew off the roofs of the reactor buildings, exposing spent-fuel pools to the atmosphere.
Nothing is more exasperating than reading reports about all the things that can’t be done at Fukushima—fixing valves, pumping water, ascertaining damage—because of heat, radiation, or the risk of explosion. Last year, BP plugged an oil leak a mile under the Gulf of Mexico with the aid of remotely operated vehicles. Why doesn’t Japan, the world’s most robotically advanced country, have
unmanned
vehicles on hand to do simple but dangerous jobs at a radiation-contaminated nuclear power plant? Ten minutes ago, I got a newsletter from the unmanned-vehicles industry about all the cool things robots are doing to help Japan. It has not a word about the nuclear reactors. That’s disgraceful.
To head off the next nuclear accident, we need to think the parameters of plant design. Why do we build backup cooling pumps for reactors but not for spent-fuel spots? And we need layers of protection that are truly independent. If some safety mechanisms require electricity, others should be functional without it. Store cooling water above the reactor so you can deliver it with plain old gravity if you lose power. And diversify the layers. At Fukushima, all the gizmos failed, but the containers have largely held firm. Build in different kinds of protection—barriers, gizmos, training, manual tools—so that if one kind fails, another can intercede.
If everything goes wrong, and your reactor melts down, don’t give up. You still have evacuation and iodine. And even if Fukushima becomes another Chernobyl, nuclear energy still has a much better safety record than fossil fuels, just as stocks have a better track record than bonds over the long term, despite the occasional crash. But that safety record depends on us. We have to learn from Fukushima. We have to give ourselves a fighting chance when things go wrong, as they sometimes will. Fukushima’s workers haven’t surrendered. We shouldn’t either.
Which of the following statements is in conformity with Murphy’s Law?
选项
A、Everything that can go right will remain right.
B、Anything that can go wrong is bound to go wrong.
C、Things that can go wrong may not necessarily do so.
D、Almost everything that may go right will stay right.
答案
B
解析
属细节题。该题探究的是哪个说法符合墨菲定律。第二段说“所有可能出现问题的地方都出现问题了”,反推过去,墨菲定律是“anything that can go wrong will go wrong”,这是关键句。选项A意为“所有可能不出问题的地方将不会出问题”;选项C意为“任何可能出问题的地方不一定会出问题”;选项D意为“几乎所有可能不出问题的地方将不会出问题”,都应排除。选项B意为“任何可能出问题的地方一定会出问题”,是正确答案。
转载请注明原文地址:https://jikaoti.com/ti/WH87FFFM
0
考研英语一
相关试题推荐
Anysufficientlyadvancedtechnology,notedArthurC.Clarke,aBritishscience-fictionwriter,isindistinguishablefrommagic.
Anysufficientlyadvancedtechnology,notedArthurC.Clarke,aBritishscience-fictionwriter,isindistinguishablefrommagic.
Whilethemissionofpublicschoolshasexpandedbeyondeducationtoincludesocialsupportandextra-curricularactivities,the
Theshortergrowingseasonsexpectedwithclimatechangeoverthenext40yearswillendangerhundredsofmillionsofalreadypo
Theshortergrowingseasonsexpectedwithclimatechangeoverthenext40yearswillendangerhundredsofmillionsofalreadypo
UnderstandingwhatdistinguishespeoplewhobattlewithAlzheimer’sastheyagefromthosewhosementalacutenessremainsstrong
Individualsandbusinesseshavelegalprotectionforintellectualpropertytheycreateandown.Intellectualproperty【C1】______c
RonaldP.RohneroftheUniversityofConnecticuthasspentsomeyearslookingattheconsequencesforchildrenandteenagersof
Doyoufindgettingupinthemorningsodifficultthatit’spainful?Thismightbecalledlaziness,butDr.Kleitmanhasanew
SomecallittheSmartShooter,anewrifleforAmericaninfantrytroopsthatistwoweaponsinone,isaccurateupto1,000yar
随机试题
社会工作者张某在社区进行家访时,有一名居民向他反映目前政府发放给他的低保金不能应付其家庭生活开支,加上他身体不好,需经常看病。他还说最近天气很冷,而家中棉被不够。张某发现社区中还有不少与这位居民情况相似的人,他决定尝试为这些居民提供服务。在下述做法中,能够
商业利润是产业资本家让渡给商业资本家的一部分剩余价值,它的来源是________。
左心泵功能不包括下列哪项计算指标
某位于季节性冻土地基上的轻型建筑采用短桩基础,场地标准冻深为2.5m。地面以下20m深度内为粉土,土中含盐量不大于0.5%,属冻胀土。抗压极限侧阻力标准值为30kPa,桩型为直径0.6m的钻孔灌注桩,表面粗糙。当群柱呈非整体破坏时,根据《建筑桩基技术规范》
下列有关滚动预算法的表述中,正确的有()。
丙注册会计师负责对E公司2×10年度财务报表进行审计。在运用审计风险模型(审计风险=重大错报风险×检查风险)时,丙注册会计师遇到下列事项,请代为做出正确的专业判断。下列表述中,注册会计师认为不正确的是()。
男生力量增长最快的年龄阶段是()岁。
下表中列出了几种限制酶识别序列及其切割位点,图1、图2中箭头表示相关限制酶的酶切位点。请回答下列问题:一个图1所示的质粒分子经SmaⅠ切割前后,分别含有______个游离的磷酸基因。
简述袁世凯回溯封建教育的措施?
A、 B、 C、 D、 B
最新回复
(
0
)