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
外语
This passage is adapted from material published in 2001. In 1998 scientists using the neutrino detector in Kamioka, Japan, were
This passage is adapted from material published in 2001. In 1998 scientists using the neutrino detector in Kamioka, Japan, were
admin
2015-06-25
105
问题
This passage is adapted from material published in 2001.
In 1998 scientists using the neutrino detector in Kamioka, Japan, were able to observe several thousand neutrinos—elusive, tiny subatomic particles moving at nearly the speed of light and passing through almost everything in their path. The Kamioka findings have potentially far-reaching ramifications. They strongly suggest that the neutrino has mass, albeit an infinitesimal amount. Even a tiny mass means that neutrinos would outweigh all the universe’s visible matter, because of their vast numbers. The findings also suggest that a given neutrino does not have one stable mass or one stable identity; instead it oscillates from one identity or "flavor"(physicists’ term describing how neutrinos interact with other particles)to another. This oscillation may explain why, although the Sun is a large source of neutrinos, detectors capture far fewer solar neutrinos than the best theory of solar physics predicts: the neutrinos may be changing to flavors undetectable by detectors. Finally, while the standard particle-physics model—which describes all matter in terms of twelve fundamental particles and four fundamental forces—does not allow for neutrinos with mass, there are theories that do. Further experiments to confirm that neutrinos have mass could help physicists determine which, if any, of these theories is correct.
The primary purpose of the passage is to
选项
A、evaluate the merits of a particular theory in light of new evidence
B、discuss scientists’ inability to account for certain unexpected discoveries
C、point out certain shortcomings in a long-standing theory
D、compare several alternative explanations for a particular phenomenon
E、consider some implications of certain scientific findings
答案
E
解析
Choice E: consider some implications of certain scientific findings
转载请注明原文地址:https://kaotiyun.com/show/JrjO777K
本试题收录于:
GRE VERBAL题库GRE分类
0
GRE VERBAL
GRE
相关试题推荐
Dina:Youlookrun-down,Brian.Brian:Yeah.I’vebeenfeelingundertheweatherrecently.【D8】______andIstillhaven’tgot
Ahundredyearsagoitwasassumedandscientifically"proved"byeconomiststhatthelawsofsocietymakeitnecessarytohave
Whenyourchildissupposedtobedoinghomework,aretheychattingwiththeirfriendsonFacebookorplayinggames?Manystudie
Whenyourchildissupposedtobedoinghomework,aretheychattingwiththeirfriendsonFacebookorplayinggames?Manystudie
Ahikerwalkedfor3days.Shewalked18milesonthefirstday,walking3milesperhour.Ontheseconddayshewalkedforone
Whichofthefollowingmostaccuratelystatesthemainideaofthepassage?Thepassagesupportswhichofthefollowinginferen
Salesoftelephoneshaveincreaseddramaticallyoverthelastyear.Inordertotakeadvantageofthisincrease,MammothIndustr
Therecentdramaticincreaseincommuterairlinecrashesiscausedinlargepartbypilotinexperience.Asamajorgrowthindust
Inhisresearchpaper,Dr.Frosh,medicaldirectorofthePayneWhitneyClinic,distinguishesmoodswings,whichmaybeviolent
Intermofphysics,thecharacteristicfeatureoftherollercoasteristhatthecars’potentialenergy,gainedthroughtheirbe
随机试题
计算机网络最突出的优点是________。
与贫血临床表现有关的因素是
夜间阵发性呼吸困难,可见于()
变电所照明设计中,关于灯具光源的选型要求()是错误的。
在施工图设计阶段,按规定编制施工图预算,是用以核实施工图阶段预算造价是否超过()。
下列股利政策中,能够增强投资者对公司的信心、稳定股票价格的有()。
旅游者丢失外国护照和签证后,补办护照和签证的必要手续包括()
下列属于法律监督的主体是()。
下列文学常识叙述有误的一项是:
设向量组α1,α2,…,αt是齐次线性方程组Ax=0的一个基础解系,向量β不是方程组Ax=0的解,即Aβ≠0.试证明:向量组β,β+α1,β+α2,…,β+αt线性无关.
最新回复
(
0
)