首页
登录
职称英语
This passage is adapted from material published in 2001.In 1998 scientists usin
This passage is adapted from material published in 2001.In 1998 scientists usin
游客
2024-01-11
8
管理
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. [br] 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://tihaiku.com/zcyy/3351712.html
相关试题推荐
In1810Gallpublishedtheneuroanatomist’smanualAnatomie,corre
A、neuraldegenerationmayoccurtooearlyforscientiststobeabledrawmanyus
Althoughscientistshavelong______thehumanappendixas______organ,therei
A、Scientistshaveruledoutthepossibilitythattheappendixisinvolvedinhin
Althoughsomescientists______thecredibilityoftheworkoftheirassistants,
Scientistshavelongsoughtthereasonsfortherelativelyyoungageof
Scientistshaveacknowledgedthattointerpretananimal’sthoughtprocessesin
SOLVENT:A、inertmaterialB、moisturizerC、cleanserD、precipitantE、instigatorD
Inthenineteenthcentury,scientistsshowedthatmanyfamiliarsubstancessuch
Scientistsresearchinghypnosishaveuncoveredevidencethatcounte
随机试题
Itissoeasytoearnrewards!Awiderangeofpartnerswhereveryougo!
[originaltext]Moderator:Hello,ladiesandgentlemen.Itgivesmegreat
Itseemsthatoursocietyfavorsakindofritualizedaggression.Everywhere
早期胃癌的概念是指A.病变小于2cm B.病变仅侵及黏膜层 C.病变仅侵及黏
传统的火灾保险承保的危险包括()A:火灾、闪电及爆炸B:火灾、闪电及空中飞行物
夸美纽斯极为重视的教学原则是( )A.循序渐进 B.直观 C.彻底与巩固
境外个人原兑换未用完的人民币兑回外汇,凭有效身份证件和原兑换水单办理,原兑换水单
某患者上颌第三磨牙废用伸长,经常咬颊,欲拔除。在行上牙槽后神经组织麻醉时,正确的
企业生产物流管理的目标有()。A.效率性目标 B.经济性目标 C.前瞻性目
(2020年真题)某房地产开发公司是增值税一般纳税人,2020年5月,拟对其开发
最新回复
(
0
)