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
114
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
Newspapersarenotnearlyaspopulartodayastheywereinthepast.Therearenotverymanypeoplewhoseriouslyreadanewspap
Economicdevelopmentdependsontheextractionofnaturalresourcesandonlow-skilledlabor,whichhasresultedinaweakman
WhatarethedifferencesbetweenpublicandprivateinAmericanhighereducation?Abigdifferenceinvolvesmoney.Publiccolleg
WhentheUnitedStatesCongresscreatedYellowstoneNationalParkin1872,thegoalwastosetasideaplacewhereAmericanscou
StudiesoftheWeddellsealinthelaboratoryhavedescribedthephysiologicalmechanismsthatallowthesealtocopewiththee
StudiesoftheWeddellsealinthelaboratoryhavedescribedthephysiologicalmechanismsthatallowthesealtocopewiththee
Expertsremovedalayerofeighteenth-centuryredpaintfromafigureinapaintingbyasixteenth-centuryItalianartist,revea
Thebankacknowledgedthattheyareandwillcontinuetoexperiencedifficultiesasitattemptstodealwiththeprecipitousfal
ViolenceinthestandsatsoccermatcheshasgottensopronouncedinseveralEuropeancountriesthatsomestadiumshaveadopted
Unlikemostwarblerspecies,themaleandfemaleblue-wingedwarblerareverydifficulttotellapart.
随机试题
在考生文件夹下,有一个数据库文件“samp1.accdb”。在数据库文件中已经建立了两个表对象“tStock”和“tQuota”。试按以下操作要求,完成各种操作。设置“tStock”表的“规格”字段的输入掩码属性,输入掩码的格式为:“220V—W”。其
党组必须服从_________。
临终病人最早出现的心理反应期是
甲公司评估战略备选方案时,主要考虑选择的战略是否发挥了企业优势,克服了劣势,是否利用了机会,将威胁减弱到最低程度,是否有助于企业实现目标。甲公司评估战略备选方案使用的标准是()。
下列各项中,不应计入投资收益的是()。
设f(x2)=x4+x2+1,则fˊ(1)=()。
A.there’sjustnotenoughtimetoseethemall.B.theywouldhavetogivemethemoneytoattendthegamesaswell.C.Fromal
Rumorhasitthatmorethan20booksoncreationism/evolutionareinthepublisher’spipelines.Afewhavealreadyappeared.【F1】
ARegularEuropeanbusinesstravellersviewtravellingoncommercialairlinesasinefficientandinconvenient.Mostlyitisnot
Ithinkanafternoonintheopenairwilldousgood,______?
最新回复
(
0
)