首页
登录
职称英语
_____, many problems of space flight could not be solved now.A、If electronic com
_____, many problems of space flight could not be solved now.A、If electronic com
游客
2023-10-30
51
管理
问题
_____, many problems of space flight could not be solved now.
选项
A、If electronic computers would not have been invented
B、Had electronic computers not invented
C、Had electronic computers not been invented
D、If electronic computers were not invented
答案
C
解析
此句为混合型虚拟语气结构,从句表示与过去事实相反,主句是表示与现在事实相反。省去if,虚拟条件状语从句用倒装形式,故C正确。
转载请注明原文地址:http://tihaiku.com/zcyy/3144125.html
相关试题推荐
(l)Archaeologyasaprofessionfacestwomajorproblems.First,itisthepo
A.incidentB.whenC.includeD.flightsE.informedF.carriagesG.ca
A.incidentB.whenC.includeD.flightsE.informedF.carriagesG.ca
A.incidentB.whenC.includeD.flightsE.informedF.carriagesG.ca
A.incidentB.whenC.includeD.flightsE.informedF.carriagesG.ca
A.incidentB.whenC.includeD.flightsE.informedF.carriagesG.ca
A.incidentB.whenC.includeD.flightsE.informedF.carriagesG.ca
A.incidentB.whenC.includeD.flightsE.informedF.carriagesG.ca
Itwasreportedthata73-year-oldmandiedonanEtihadflight_____toGermanyf
Mostpeopleagreethatvolunteerworkbringsmorebenefitsthanproblemsto
随机试题
•Readthetextbelowaboutthestartofanewbusiness.•Choosethebestword
MuchoftheresearchonhallucinogenicdrugssuchasLSDhasfocusedonthe
ToSaveTrees,FightingOneAlienInsectwithOthersRustyRhea
党的十九大报告指出,农业农村农民问题是关系国计民生的(),必须始终把解决好“三
针对某计算机平台开发的软件系统,其()越高,越不利于该软件系统的移植。A.效率
下列关于连续复利的说法,正确的是()。A.只要本金在贷款期限中获得利息,
从一般意义上来说,()是事物的存在状态和运动属性的表现形式。A:物质 B:速
项目干系人在()阶段对项目的影响力最大。A.项目定义 B.项目开发 C.项目
D
2013-75.根据《中华人民共和国自然保护区条例》,关于自然保护区内部分区的划
最新回复
(
0
)