首页
登录
职称英语
If computers______, many problems on space flight could not have been solved.A、h
If computers______, many problems on space flight could not have been solved.A、h
游客
2024-09-18
47
管理
问题
If computers______, many problems on space flight could not have been solved.
选项
A、had not been invented
B、are not invented
C、were not invented
D、have not invented
答案
A
解析
译文:如果没有发明计算机的话,太空飞行的许多问题就不可能解决。虚拟语气题。本题考查与过去事实相反的虚拟语气,其结构为“从句:If+主语+had+动词过去分词;主句:主语+should/would/might/would+have+动词过去分词”,故本题选[A]。
转载请注明原文地址:https://tihaiku.com/zcyy/3763899.html
相关试题推荐
Ifcomputers______,manyproblemsonspaceflightcouldnothavebeensolved.A、h
Therearestillmanyproblemsaheadofus,butbythistimenextyearwecansee
Thecommitteehasanticipatedtheproblemsthat______intheroadconstructionp
Itisnotuncommonforthere______problemsofcommunicationbetweentheoldand
ThemanwantstogetthefollowingdetailsoftheflightsEXCEPT[br][original
ThemanwantstogetthefollowingdetailsoftheflightsEXCEPT[br][original
ThemanwantstogetthefollowingdetailsoftheflightsEXCEPT[originaltext]W
Aninvisibleborderdividesthosearguingforcomputersintheclassroomon
Theincreaseinstudentnumbers______manyproblemsfortheuniversities.A、forces
(1)Becauseofcomputersandcabletelevision,themembersoftheaudiencewi
随机试题
Questions9-15•Lookatthenotesbelow.•Someinformationismissing
"Ineveryknownhumansocietythemale’sneedsforachievementcanberecogn
A.actualB.cunningC.impressionD.simplyE.verbalF.resultG.non-
未经检验检测或者经检验检测不合格的建筑起重机械,登记机关不予办理使用登记,但无权
图形推理。请从所给的四个选项中,选择最合适的一个填在问号处,使之呈现一定的规律性
患儿,3岁。平时易患感冒,自汗,偶有盗汗,汗出以头部、肩背部汗出明显,动则尤甚,
在施测中国比内测验时,对于受测者有关试题的探索性问题,一般应该对他说()。
发生第Ⅰ相生物转化后,具有活性的药物是A.保泰松结构中的两个苯环,其中一个羟基化
风险管理的宗旨是以最小的经济成本达到()风险。A.分散 B.扩大 C.转移
(2020年真题)百苑集团是一家实行标准化管理的跨国餐饮连锁企业。2016年以
最新回复
(
0
)