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
Scientists said they have found evidence of a giant planet far out in our solar system. In a statement, the California Institute
Scientists said they have found evidence of a giant planet far out in our solar system. In a statement, the California Institute
admin
2022-10-01
118
问题
Scientists said they have found evidence of a giant planet far out in our solar system. In a statement, the California Institute of Technology—Caltech—said this planet travels a very strange " long and thin orbit in the distant solar system. " The discovery was made by two researchers at Caltech; Konstantin Batygin and Mike Brown. They used mathematical modeling and computer simulations (模拟) to find the planet. So far, there have not been any direct observations of the planet.
"My jaw hit the floor," said astronomer (宇航员) Mike Brown, the moment he realized there might be a ninth planet.
The scientists said it would take this planet 10,000 to 20,000 years just to make one full orbit around the Sun. The new planet, called " Planet Nine", has a mass about 10 times the size of Earth. If they are right, the newly found planet would be the ninth planet in our solar system. Pluto (冥王星) had been called the ninth planet until 2006, when it was renamed a "dwarf planet. " Actual confirmation of a ninth planet would be very big news. "This would be a real ninth planet," Brown said in the statement. "There have only been two true planets discovered since ancient times, and this would be a third. It’s a pretty substantial part of our solar system that’s still out there to be found, which is pretty exciting. "
While they did not get a picture of
"Planet Nine"
yet, the scientists say they are using the biggest—and best—telescopes on Earth to try to find "Planet Nine. " They are also working on improving their computer simulations. They want to find out more about "Planet Nine’s" orbit, and its impact on the outer part of our solar system.
It can be inferred from Paragraph 4 that________.
选项
A、there is no actual confirmation about the ninth planet
B、no true planets were discovered in ancient times
C、scientists have found three planets in modern times
D、the ninth planet is the only one discovered since ancient times
答案
A
解析
第四段。综合分析题。B、C和D选项均与第四段布朗提到的“自古以来,只有两颗真正的行星被发现,而这会是第三颗。”矛盾;A选项符合第四段第一句,故选A。
转载请注明原文地址:https://kaotiyun.com/show/2IcD777K
0
成人本科学位英语
相关试题推荐
Firstitwaspets,thenfish.Nowit’spoultryandpigs.The【C1】________ofanimalsallowedtofeedoninsectsisgrowing.Anew
Nobodyeverproteststhatanelementaryschoolshouldbedescribedas"manned"insteadof"staffed,"butdaretosuggesta"men
SupposeyouareamemberoftheStudents’Unionandyouruniversitywillholdanexperiencesharingmeetingaboutthepostgradua
Weighingyourselfregularlyisawonderfulwaytostayawareofanysignificantweightfluctuations.【C1】________,whendonetoo
WhydopeoplereadnegativeInternetcommentsanddootherthingsthatwillobviouslybepainful?Becausehumanshaveaninheren
Rememberbooks?Theywerethosepiecesofpaperwithwordsprintedonthem【C1】________inbetweentwo,sometimes,【C2】________cove
Longtimeago,everyoneknewthatregularbedtimeswereimportant."Dreamon!"mostmodernparentsmightreply.Butresearchby
Longtimeago,everyoneknewthatregularbedtimeswereimportant."Dreamon!"mostmodernparentsmightreply.Butresearchby
Bettingagainstanindustrywithaddictsforcustomerscarriesobviousrisks.【C1】________theseareuncertaintimesforBigTobac
Forty-threepercentofAmericanssaytheyaretootiredtofunction.So,somemornings,youmighteven【C1】________stayinginbed
随机试题
企业年应收账款周转次数为4.5次,若一年按360天计算,则应收账款周转天数是()
患儿,1岁。生后4个月发现智力发育落后,尿有鼠尿臭味,毛发及皮肤颜色浅,7月开始出现癫痫小发作。实验室检查确诊为典型的PKU,给予低苯丙氨酸饮食。该患儿每天允许摄入苯丙氨酸的量为
其病辨证为宜选何方
A.12kg、85cmB.14kg、105cmC.16kg、110cmD.18kg、115cmE.20kg、112cm2周岁的小儿的标准体重、身高按现行公式计算应为
对厚度为240mm的砖墙,大梁支承处宜加设壁柱,条件取决于大梁跨度,以下所列条件,何者是正确的?
(2004)某城市建筑日照间距系数为l:1.5,在平地上南北向布置两栋住宅.已知住宅高度为18m,室内外高差为0.6m,一层窗台高0.9m。女儿墙高度为0.6m,则此两栋住宅的最小日照间距为()。
阅读材料,回答问题。中华民族是讲信义的民族,一贯主张“以诚为本”“以信立业”。但目前社会上却存在诸如考场上的违规作弊,运动场上的假球黑哨,商场上的违约欺诈等弄虚作假行为。这类行为可能会得到短期的利益,但终将因失去信誉而损害了自己的长远利益和社会的
A、正确B、错误A
A、Bypayingformealsoneatatime.B、Byborrowingastudent’smealcard.C、Byorderingtheirmealsinadvance.D、Bybuyingaw
Londonhasbeena【B1】______cityfornearly1,000years,andmanyofits【B2】______buildingsstillstand.Themostfamousofthe
最新回复
(
0
)