首页
登录
职称英语
According to scientists at the University of California, the pattern of changes
According to scientists at the University of California, the pattern of changes
游客
2025-02-25
12
管理
问题
According to scientists at the University of California, the pattern of changes that have occurred in human DNA over the millennia
indicates the possibility that everyone alive today might be descended from a single female ancestor who
lived in Africa sometime between 140,000 and 280,000 years ago.
选项
A、indicates the possibility that everyone alive today might be descended from a single female ancestor who
B、indicates that everyone alive today might possibly be a descendant of a single female ancestor who had
C、may indicates that everyone alive today has descended from a single female ancestor who had
D、indicates that everyone alive today may be a descendant of a single female ancestor who
E、indicates that everyone alive today might be a descendant from a single female ancestor who
答案
D
解析
A中:主句中possibility与从句中的might形成了同义重复,B中might与possibly同样是同义重复。C中:本应用来修饰从句谓语动词的may改为了修饰主句谓语动词indicate,句意改变。同时,B、C中who从句中用过去完成时是毫无根据的。在本句中,might仅表示一种可能性,并非may的过去时,两者在表达可能性上是等价的。D、E主要区别是:descendent之后用of还是用from。一般来说,表“血缘、隶属关系”用介词of,而表“来源”关系应用from。此句中descendent和ancestor之间是一种血缘关系,因而应选D而不是E。(from与of的区分问题)
转载请注明原文地址:https://tihaiku.com/zcyy/3972169.html
相关试题推荐
Asaresultoftheground-breakingworkofBarbaraMcClintock,manyscientistsn
Accordingtosomeanalysts,whateveritsmerits,theproposaltotaxawayallca
ResearchersatCornellUniversityhavedemonstratedthathomingpigeonscansens
AccordingtotheBetterBusinessBureau,ifyoufailtoadvertisethehighestpr
BecauseHalley’scometchangesorbitslightlyduringtheseventy-six-yearinterv
AccordingtosurveysbytheNationalInstituteonLongAbuse,about20percento
Accordingtosomeeconomists,Japanisindangerofplungingintoadepressiont
Accordingtohisownaccount,Frederic-AugusteBartholdi,thesculptoroftheSt
Section13(J)oftheSecuritiesExchangesActof1934requiresanyonewhobuysmo
Scientistshaverecentlydiscoveredwhatcouldbethelargestandoldestliving
随机试题
[originaltext]W:Areyoubusythisevening?I’mgoingovertotheInternational
Concerningmoneyoranythingelse,conflictsbetweenhusbandandwifeusuall
Thelistenerhasagivenamountofenergytoexpendincompletingthecommun
曲线的渐近线有()A.一条 B.二条 C.三条 D.四条
下图所表示的实际地形为( )。 A.山脊 B.山谷 C.山凹 D.无法
挥发油的沸点范围大多在A.50~200℃ B.30~300℃ C.40~30
某药厂生产的复方丹参滴丸,为现今临床常用的心血管系统疾病药物,组成包括丹参、三七
针对被审计单位银行存款管理涉及的内部控制,下列说法中,不恰当的是()。A.
隧道施工中,发现水体颜色或悬着物发生变化时,应实行()管理。A.I级 B.Ⅱ级
女,68岁。清晨锻炼时突发心肌梗死,心跳骤停3分钟后实施心肺复苏,5分钟后心跳、
最新回复
(
0
)