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
The sun today is a yellow dwarf star. It is fueled by thermonuclear reactions near its center that convert hydrogen to helium. T
The sun today is a yellow dwarf star. It is fueled by thermonuclear reactions near its center that convert hydrogen to helium. T
admin
2011-01-11
33
问题
The sun today is a yellow dwarf star. It is fueled by thermonuclear reactions near its center that convert hydrogen to helium. The sun has existed in its present state for about 4 billion, 600 million years and is thousands of times larger than the Earth.
By studying other stars, astronomers can predict what the rest of the sun’s life will be like. About 5 billion years from now, the core of the sun will shrink and become hotter. The surface temperature will fail. The higher temperature of the center will increase the rate of thermonuclear reactions. The outer regions of the sun will expand approximately 35 million miles, about the distance to mercury, which is the closest planet to the sun. The sun will then be a red giant star. Temperatures on the earth will become too hot for life to exist.
Once the sun has used up its thermonuclear energy as a red giant, it will begin to shrink. After it shrinks to the size of the earth, it will become a white dwarf star. The sun may throw off huge amounts of gases in violent eruptions called nova explosions as it changes from a red giant to a white dwarf.
After billions of years as a white dwarf, the Sun will have used up all its fuel and will have lost its heat. Such a star is called a black dwarf. After the Sun has become a black dwarf, the earth will be dark and cold. If any atmosphere remains there, it will have frozen onto the earth’s surface.
According to the passage, which of the following best describes the sequence of stages that the sun will probably pass through?
选项
A、Yellow dwarf, white dwarf, red giant, black giant.
B、Red giant, white dwarf, red dwarf, nova explosion.
C、Yellow dwarf, red giant, white dwarf, black dwarf.
D、White dwarf, red giant, black dwarf, yellow dwarf.
答案
C
解析
是非题型通读全文,可得出结论:太阳的演变过程是Yellow dwarf,red giant,white dwarf;black dwarf,所以C为答案。
转载请注明原文地址:https://kaotiyun.com/show/NLgO777K
本试题收录于:
CATTI二级笔译综合能力题库翻译专业资格(CATTI)分类
0
CATTI二级笔译综合能力
翻译专业资格(CATTI)
相关试题推荐
Shynessisthecauseofmuchunhappinessforagreatmanypeople.Shypeopleareanxiousandself-conscious;thatis,theyaree
Abouttwo-thirdsoftheworld’spopulationisexpectedtoliveincitiesbytheyear2020and,accordingtotheUnitedNations,
HiramRevels,thefirstblackmemberoftheU.S.Senate,servedassenatorfromMississippi,anofficewherehewaselectedin1
Itisamarketwhichsalesvaluemightbemorethan10billionRMByuanayear.
Likesauces,withoutacertainamountofspice,conversationsgrowuninteresting.
AsurveyofcorporateAmericabyBusinessWeekshowedwhatthemagazinecalled"ayawningdividebetweenfamily-friendlinessin
Scientistsbelievethatthereisnotenoughoxygeninthemoon’satmosphereto______plantlife.
ThenumberofimmigrantslivingintheUSAhasrisenby16percentoverthelastfiveyears,fueledlargelybyrecentarrivalsf
Onthewaytothecompany,becausetheroadwasblockedbyatrafficaccident,themanagerhadtomakea______.
Thevaseweboughtlastmonthhasbrokenalready.Wehadfarbetterboughtthemoreexpensiveone.
随机试题
A.酸水B.碱水C.丙酮D.乙醇E.纯净水可用于新鲜动物药材脱脂或脱水的是
患者,男,42岁。左下腹痛1个月,便血,里急后重。下列哪项检查较简便且有诊断意义
A、调经丸B、同仁乌鸡白凤丸C、逍遥丸D、当归丸E、暖宫七味丸用于气郁血滞引起的月经不调的是
【背景资料】某水利水电工程施工企业在对公司各项目经理部进行安全生产检查时发现如下情况:情况一:公司第一项目经理部承建的某泵站工地,在夜间进行泵房模板安装作业时,由于部分照明灯损坏,安全员又不在现场,一木工身体状况不佳,不慎从12m高的脚手架上踩空直接坠
下列各项中,()焊缝应采用超声波探伤进行内部缺陷的检验。
素有“年画之乡”美誉的是()。
唐律区分公罪和私罪,处理上()。
(2014年真题)甲盗割高压电线,既构成破坏电力设备罪,又构成盗窃罪。这种犯罪形态属于()。
Usingtheinformationinthetext,completeeachsentence14-18withanexpressionfromthelistbelow.Foreachsentence(14
HowtoGetaPaperPublishedI.Prerequisitedoingmass【B1】______【B1】______collectingmassinformationanddataII.Thingsy
最新回复
(
0
)