首页
登录
职称英语
Since early times, people have been fascinated with the idea of life existin
Since early times, people have been fascinated with the idea of life existin
游客
2024-02-04
38
管理
问题
Since early times, people have been fascinated with the idea of life existing somewhere else besides earth. Until recently, scientists believed that life on other planets was just a【B1】______ dream. But now they are beginning to【B2】______places where life could form. In 1997, they saw evidence of planets near other stars like the sun. But scientists now think that life could be even nearer in our own【B3】______ system. One place scientists are studying very closely is Eu- ropa, a moon of Jupiter. Space probes have【B4】______ evidence that Europa has a large ocean under its surface. The probes have also made scientists think that under its surface Europa has a rocky core【B5】______ volcanic heat Water and heat from volcanic activity are two basic conditions needed for life to form. A third is certain basic chemicals such as carbon,【B6】______ and nitrogen. Scientists believe there might be such chemicals lying at the bottom of Eu- ropa’s ocean. They may have already created life, or may【B7】______. You may wonder if light is also needed for life to form. Until recently, scientists thought that light was【B8】______. But now, places have been found on earth that are in total blackness, such as caves several miles beneath the surface, and bacteria,【B9】______forms of life, have been seen there. So the lack of light in Europa’s subsurface ocean doesn’t automatically【B10】______ life forming. [br] 【B3】
选项
答案
solar
解析
转载请注明原文地址:http://tihaiku.com/zcyy/3420848.html
相关试题推荐
Thethousandsofpeopleforcedtoabandontheirhomesinrecentweekstoflo
Thethousandsofpeopleforcedtoabandontheirhomesinrecentweekstoflo
Thethousandsofpeopleforcedtoabandontheirhomesinrecentweekstoflo
Volumeshavebeenwrittenabouttechnology’sabilitytoconnectpeople.But
Volumeshavebeenwrittenabouttechnology’sabilitytoconnectpeople.But
[originaltext]M:Whatdoyouthinkaboutallthedifferentdietsthatpeoplego
[originaltext]Withgrowingnumbersofpeoplelivingalone,eitherbychoice
[originaltext]Withgrowingnumbersofpeoplelivingalone,eitherbychoice
[originaltext]Whenastormiscoming,mostpeopleleavetheareaasquicklyas
[originaltext]Whenastormiscoming,mostpeopleleavetheareaasquicklyas
随机试题
Itisamatterofcommonobservationthatalthoughincomeskeepgoingupove
ANiceCupofTeaTheLegendaryOriginsofTeaA)Thestoryofteabegan
下列关于小脑功能的描述,正确的是()A.前庭小脑主要调节肌紧张 B.脊髓小
下列事项中应当制发通知的有()。A.某大学向某市旅游局联系有关学生毕业实习的事
光纤传输测试指标中,回波损耗是指()。A.信号反射引起的衰减 B.传输距离
A.募穴 B.络穴 C.下合穴 D.俞穴 E.原穴中府、巨阙、期门、膻中
Thechangeinthatvillagewasmiraculou
各种运输方式内外部的各个方面的构成和联系,就是( )。 A.运输系统
结束了“禅让制”的是( )A.尧 B.舜 C.禹 D.启
患者女,42岁。劳累时心悸、气短2年,腹胀、尿少3天。心电图示心房颤动,心室率1
最新回复
(
0
)