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
As he collected fossils from strata throughout England, Smith began to see that the fossils told a different story from the rock
As he collected fossils from strata throughout England, Smith began to see that the fossils told a different story from the rock
admin
2014-09-29
74
问题
As he collected fossils from strata throughout England, Smith began to see that the fossils told a different story from the rocks. Particularly in the younger strata, the rocks were often so similar that he had trouble distinguishing the strata, but he never had trouble telling the fossils apart. While rock between two consistent strata might in one place be shale and in another sandstone, the fossils in that shale or sandstone were always the same. Some fossils
endured
through so many millions of years that they appear in many strata, but others occur only in a few strata, and a few species had their births and extinctions within one particular stratum. Fossils are thus identifying markers for particular periods in Earth’s history.
According to paragraph 4, it was difficult for Smith to distinguish rock strata because
选项
A、the rocks from different strata closely resembled each other
B、he was often unable to find fossils in the younger rock strata
C、their similarity to each other made it difficult for him to distinguish one rock type from another
D、the type of rock between two consistent strata was always the same
答案
A
解析
转载请注明原文地址:https://kaotiyun.com/show/rHfO777K
0
托福(TOEFL)
相关试题推荐
Completetheformbelow.WriteONEWORDAND/ORANUMBERforeachanswer.
Choosethecorrectletter,A,BorC.CourseFeedbackTohelpherunderstandlectures,Hiroko
Completethenotesbelow.WriteONEWORDONLYforeachanswer.EngineeringforsustainabledevelopmentTheGreenhou
Completethenotesbelow.WriteONEWORDAND/ORANUMBERforeachanswer.ThingstodobeforewegoExam
WhatrulesapplytotakingdifferentobjectstotheCentre?Matcheachobjectwiththecorrectrule,A-C.Writethecorrectlett
WhatrulesapplytotakingdifferentobjectstotheCentre?Matcheachobjectwiththecorrectrule,A-C.Writethecorrectlett
Completethenotesbelow.WriteNOMORETHANTHREEWORDSforeachanswer.GIVINGASPEECHReasonsfornervousnessLecturers
EngineeringforsustainabledevelopmentTheGreenhouseProject(Himalayanmountainregion)ProblemShortgrowingseason
随机试题
尿潴留是指尿液潴留在( )。
甲型流感病毒最容易发生变异的成分是
不得进入施工现场的“三无”人员中,不含()人员。
根据竞争与垄断关系的不同,市场通常可分为()等几种类型。
解决国际间重复征税的方法有().
下列收入中免征个人所得税的是()。
结构一定向教学理论的提出者是()
A、 B、 C、 D、 A
设萨6,则执行x=IIf(a>5,-1,0)后,x的值为()。
MarsfascinatesscientistsbecauseofitssimilaritytoEarth,anditfascinatesthepublicbecauseourmythof"Martians"isa
最新回复
(
0
)