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
According to the new research, the odd shape mounds were formed by______.
According to the new research, the odd shape mounds were formed by______.
admin
2012-03-23
41
问题
According to the new research, the odd shape mounds were formed by______.
Scientists who’ve been studying oddly shaped rock formations in western Australia said it could be fossils from the earliest life on earth, microbes which flourished some 3. 4 billon years ago. The scientists say that the different structures suggest that primitive life can quickly diversify, giving it better chance of developing on other planets. For decades scientists have argued about the meaning of rocky outcrops in western Australia called stromatolites. These odd shape mounds were believed by some to have been formed by chemical or geographical events. Others suggest that they were in fact created by ancient microbes. Now this research indicates that the formations are just too complex to have been formed by chemicals. A team of scientists studied thousands of stromatolites and were able to describe 7 different categories. According to the researchers, this proves that the formations weren’t random, but were in fact formed by microbes about 3. 4 billion years ago.
选项
A、is the earliest life on earth.
B、could be reserved in fossils.
C、flourished on some 3. 4 billon years ago.
D、can quickly develop into various forms.
答案
D
解析
转载请注明原文地址:https://kaotiyun.com/show/KbiO777K
0
专业英语八级
相关试题推荐
Themid-18thcenturywaspredominatedbyanewlyrisingliteraryform--______,whichgivesarealisticpresentationoflifeoft
Sometimesoon,accordingtoanimal-rightactivities,agreatapewilltestifyinanAmericancourtroom.Speakingthroughavoice
Divorceandout-of-wedlockchildbirtharetransformingthelivesofAmericanchildren.Inthepostwargenerationmorethan80pe
WhichofthefollowingisNOTwrittenbyWilliamButlerYeats?
Inaperfectlyfreeandopenmarketeconomy,thetypeofemployer—governmentorprivate-shouldhavelittleornoimpactonthee
CharlesDickens,author,editorandsocialreformerisknownforthevividpicturehepaintedoflifeinEnglandintheearly19
AreFamiliesNecessary?Ashumanchildrenareunusually【1】foranunusuallylongtime,it’sobviousthateverysocietymustp
Whichofthefollowingisasentencewithametaphor?
A、Ithasdeniedtheauthenticityofthepicturesofabusedprisoners.B、Ithassupportedthedecisiontostopthepublicationof
SomeProblemsFacingLearnersofEnglishAlthoughmanyEnglishlearnershavegothighscoresinanEnglishtestsuchasIELTS
随机试题
单核吞噬细胞系统的细胞起源于
甲烷化反应是指()的反应。
本病例最可能的诊断该病最重要的传染源
星星服装厂为扭转亏损局面,承揽为个体经营点生产2万套人民警察制式服装的任务,该批服装由经营点销售一空。服装厂的行为已构成:
尼古拉斯实验的曲线图巾,在以下哪个区域里,不同相对粗糙度的试验点,分别落在一些与横轴平行的直线上,阻力系数λ与雷诺数无关:
在儿童少年时期,宜采用( )
有项调查报告指出,服用某种药品会提高人的注意力。如果上述的信息正确,那么以下哪项可由上述信息推出?
Howdoesthemanseemtofeelaboutdrivingfromhishometohiswork?
Whatistheusageofthestandardweight?
A、Tomakethewomanangry.B、Topleasetheman’smother.C、Davidistheman’sgoodfriendD、Davidisgoodatcarryingonconver
最新回复
(
0
)