首页
登录
职称英语
________, many problems of space flight could not be solved now.A、If electronic
________, many problems of space flight could not be solved now.A、If electronic
游客
2023-10-23
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/3123371.html
相关试题推荐
Giventheadvantagesofelectronicmoney,youmightthinkthatwewouldmovequi
Giventheadvantagesofelectronicmoney,youmightthinkthatwewouldmovequi
Giventheadvantagesofelectronicmoney,youmightthinkthatwewouldmovequi
Giventheadvantagesofelectronicmoney,youmightthinkthatwewouldmovequi
_______humanproblemsthatrepeatthemselvesin_______liferepeatthemselves
______,hesometimescannotstandthewayshesolvesproblems.A、Althoughmuchh
Sheremainsconfidentand______untroubledbyourpresentproblems.A、indefinite
Mostmathematicianstrusttheir_______insolvingproblemsandreadilyadmitthe
Itwasrecommendedthatpassengers_______smokeduringtheflight.A、notB、need
Mostpeopleagreethatvolunteerworkbringsmorebenefitsthanproblemsto
随机试题
[audioFiles]audio_etoefz_037(20051)[/audioFiles]A、Themanwasabsentwhensheg
Inplaceoftheking,twochiefexecutiveswerechosenannuallybythewhole
Thenewerahaswitnessedanexplosionofinformation.Peoplecannoweasily
Atleastsomeoftheweatherextremesbeingseenaroundtheworldareconseq
[originaltext]Interviewer:WellCharles,Imustsaythatyourshopisprettyre
协调性子宫收缩过强,对母儿影响哪项是正确的A.产程进展快,对胎儿有利 B.不易
截至2013年,我国共有170个“癌症村”,分布于25个省市区。
"诸有水者,腰以下肿,当利小便,腰以上肿,当发汗乃愈"的治疗原则见于A.《金匮要
股份有限公司的设立可以采用的方式有()。A:发起设立 B:法人设立 C:募集
(2015年真题)根据《麻醉药品和精神药品管理条例》药品经营企业对第二类精神药品
最新回复
(
0
)