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
2023-10-27
20
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:https://tihaiku.com/zcyy/3133753.html
相关试题推荐
Areenvironmentalproblemstoobigforindividualstosolve?Thismatterhas
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
Thefactthathighschoolstudentssufferedfrompsychologicalproblemshas
Ifasubstanceisdissolvedinwaterorheated,itmay______agas.A、giveinto
随机试题
Hegainedhis______byprinting______offamouswriters.A、wealth,workB、wealt
Amidasummerofrecord-settingheat,anewsurveyfindsthatmostofGenera
TradingModernistforMcmansion[A]In1949W.ClintonBackusandhiswif
患者,男性,55岁。上腹部隐痛伴体重下降1个月。行胃镜检查示胃窦部占位。查体:皮
患者,男性,30岁。因咳嗽1个月余,伴低热、痰中带血7天就诊。肾移植术后1年。胸
前胸计数肋骨时的重要标志为()A.胸锁关节 B.前正中线 C.腋前线
在发生人身触电事故时,可以不经许可,即行断开有关设备的电源,但事后应立即报告()
成年人垂体功能亢进可引起A.侏儒症 B.呆小症 C.黏液性水肿 D.肢端肥
甲与乙因情生仇。一日黄昏,甲持锄头路过乙家院子,见甲妻正在院内与一男子说话,以为
紧缩战略的表现形式有()。A.维持利润战略 B.多元化成长战略 C.转向战
最新回复
(
0
)