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
2018-04-03
37
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 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 a-round 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
推理题。B、C、D三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。”相矛盾,根据第四段第一句可知A选项正确,故选A。
转载请注明原文地址:https://jikaoti.com/ti/69GYFFFM
0
成人本科学位英语
相关试题推荐
Readingisconsideredtobeakindofconversationbetweenthereaderandthetext.Thereaderputsquestions,asitwere,toth
Dataprocessingisaseriesofoperationscarriedoutondatatogetinformation.【C1】______seriesofoperationsisalsocalledt
SpeakerA:I’mterriblysorryforbeingsocareless.SpeakerB:________
Itison(each)individualeffort(which)thesafetyandhappinessof(thewhole)(depend).
Thehousewasquietat5amandTim’smotherwasasleep.Onlythesoundofthebigfreezerbrokethequiet.He’ddreamtofthec
Themeetingwillbeputoff______noadequatepreparationsaremade.
Eveniftheyareonsale,theserefrigeratorsareequalinpriceto,ifnotmoreexpensivethan,______attheotherstore.
ToswimacrosstheEnglishChanneltakesatleastninehours.It’sahardworkanditmakesyoushortofbreath.Toflyoverthe
Withhisson______,theoldmanfeltunhappy.
随机试题
文化教育学又称
男,70岁。足刺伤10日,头痛、乏力、张口困难及颈项强直,伤口红肿。临床诊断为
安全生产许可证条例施行前已经进行生产的企业,应当自《安全生产许可证条例》施行之日起()内,依照安全生产许可证条例的规定向安全生产许可证颁发管理机关申请办理安全生产许可证。
《中华人民共和国水污染防治法》中关于“开采多层地下水”的规定错误的是()。
假设存在事件A与事件B,则关于这两个事件之间的关系表述正确的是()。
下列各项中,经海关查明属实,可酌情减免进口关税的有()。
违反公序良俗原则的行为不包括()。
常见软件开发生命周期中,瀑布模型、迭代模型和快速原型3种模型各有优缺点,主要表述如下。优点:A.强调开发的阶段;B.强调早期计划及需求调查;C.强调产品测试;D.开发中的经验教训能及时反馈;E.信息反馈及时;P.销售工作有可能提前进行;G.采取早期预防措施
存储容量中,1MB的容量等于()。
DieMausnimmt______SohndenWagen.
最新回复
(
0
)