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
专升本
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
2019-03-28
25
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 astronorner(天文学家) 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 the 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 the 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.
To find "Planet Nine" , scientists are using all the following EXCEPT______.
选项
A、mathematical modeling
B、computer simulations
C、advanced telescopes
D、large spacecrafts
答案
D
解析
根据第一段倒数第二句“They used mathematical modeling and computer simulations to find the planet.”以及最后一段第一句“…they are using the biggest and best telescopes…”可知,只有选项D是没有被提到的。故选D。
转载请注明原文地址:https://kaotiyun.com/show/aGJC777K
本试题收录于:
英语题库普高专升本分类
0
英语
普高专升本
相关试题推荐
I’dratheryou______anythingaboutitforthetimebeing.
Hehardly______sayanythingmore,sinceyouknowallaboutit.
A、Itcanhelpsolvecomplexproblems.B、ItwillmostlikelyproveineffectiveC、Itisanewweaponagainstterrorists.D、Itwill
Itis______thatoveronemillionAmericansnowlivebelowthepovertyline.
______therainstopsbefore12o’clock,wewillhavetocancelthegame.
Thismatterissoimportantthatitshouldnotbeleftinthehandsofaninexperiencedlawyer.
Oceanographyhasbeendefinedas"theapplicationofallsciencestothestudyofthesea".Beforethe19thcenturyscientistsw
Although______happenedinthatcountrysoundslikesciencefiction,itcouldoccurelsewhereintheworld.
Theyare____ofdifferentpresses(出版社).Nowtheyarehavingameetinginoneofthe____office.
Expressionsaboutwaterarealmostascommonaswateritself.Butmanyoftheexpressionsusingwaterhaveunpleasantmeanings.
随机试题
PASSAGEONEWhatdoes"ithadbeentheotherwayabout"inPara.5mean?
以下公文办理程序中属发文办理环节的有()
气陷证一般不出现的病症是
图示两系统均做自由振动,其中图a)系统的周期和图b)系统的周期为下列中的哪一组?
已知某工程承包合同价款总额为6300万元,其主要材料及构件所占比重为60%,预付款金额为工程价款总额的20%,则预付款起扣点是()万元。
()教学模式是美术教学中培养学生审美文化与思辨能力的重要学习内容。
婴儿看见物体时,先是移动肩肘,用整只手臂去接触物体,然后才会用腕和手指去接触并抓取物体,这是儿童动作发展中的()所致。
在当事人没有约定的情况下,下列关于清偿抵充的表述,正确的是()。
删除student表中“平均成绩”字段的正确SQL命令是()。
将考生文件夹下的HIGER\YION文件夹中的文件ARIP.BAT重命名为FAN.BAT。
最新回复
(
0
)