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
101
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
________heobjectedtoyourimpolitebehaviorisquiteunderstandable.
Ifacubehasavolumeof125,whatisthesurfaceareaofoneside?
Ifacubehasatotalsurfaceareaof96,whatisitsvolume?
Theprimaryfocusofthepassageisonwhichofthefollowing?Theauthorstatesthattheresearchdescribedinthefirstparag
Federaleffortstoaidminoritybusinessesbeganinthe1960’swhentheSmallBusinessAdministration(SBA)beganmakingfederal
Australianresearchershavediscoveredelectroreceptors(sensoryorgansdesignedtorespondtoelectricalfields)clusteredatthe
Despitetheapproachofwinter,oilpricestoindustrialcustomersareexceptionallylowthisyearandlikelytoremainso.Ther
Thepopulationofperegrinefalconsdeclinedrapidlyduringthe1950’sand1960’sandreachedanall-timelowintheearly1970’
Inhisresearchpaper,Dr.Frosh,medicaldirectorofthePayneWhitneyClinic,distinguishesmoodswings,whichmaybeviolent
Despiteprotestsfromsomewaste-disposalcompanies,statehealthofficialshaveorderedthelevelsofbacteriainseawateratp
随机试题
A、①B、②C、③D、④D
腰椎间盘突出最重要的体征是()
有关鞍上池毗邻关系的正确措述是:
作为中子源来治疗肿瘤的放射源是
A、气滞证B、气虚证C、气脱证D、气陷证E、气逆证少气懒言、神疲乏力、活动后加剧,多为
县烟草专卖局发现刘某销售某品牌外国香烟,执法人员表明了自己的身份,并制作了现场笔录。因刘某拒绝签名,随行电视台记者张某作为见证人在笔录上签名,该局当场制作《行政处罚决定书》,没收15条外国香烟。刘某不服该决定,提起行政诉讼。诉讼中,县烟草专卖局向法院提交了
“备案号”栏:()。“保费”栏:()。
企业的实收资本等于()。
根据我国现行宪法的规定,享有宪法修改提议权的主体包括()。(2010年多选52)
A、I’mAlice.B、WhereisSusan?C、Whoareyou?A此句意为:你是谁?应答时一般告知别人你是谁。所以AIamAlice.是答案。
最新回复
(
0
)