首页
登录
职称英语
After they _____ the first super computers in the 1940s, scientists and engineer
After they _____ the first super computers in the 1940s, scientists and engineer
游客
2024-06-24
51
管理
问题
After they _____ the first super computers in the 1940s, scientists and engineers began to develop ways to create networks.
选项
A、create
B、created
C、have created
D、has created
答案
B
解析
考查动词时态。本句是主从复合句,主句使用了一般过去时(began),其动作“开始开发”在after引导的时间状语从句的动作“创造第一台超级计算机”之后发生,且从句中有表示过去时间的状语in the1940s,因此需用一般过去时。B项created正确。
转载请注明原文地址:https://tihaiku.com/zcyy/3647964.html
相关试题推荐
Scientiststhinklaser(be)______oneofthemostusefultoolstoday.tobetobe在此
Scientistscandeterminesomeone’sfavoritefoodfromtheirbodyshape.The
AnewpollshowsthatpeoplebelievethatcomputersandtheInternethavema
AnewpollshowsthatpeoplebelievethatcomputersandtheInternethavema
Afterthey_____thefirstsupercomputersinthe1940s,scientistsandengineer
Scientistsfindthathard-workingpeoplelivemuchlongerthanaveragemena
Scientistsfindthathard-workingpeoplelivemuchlongerthanaveragemena
Scientistsfindthathard-workingpeoplelivemuchlongerthanaveragemena
Scientistsfindthathard-workingpeoplelivemuchlongerthanaveragemena
Scientistsfindthathard-workingpeoplelivemuchlongerthanaveragemena
随机试题
Whatdidthegrandfatherusetohave?[originaltext]Mygrandfatherusedtoha
Theenergycrisis,whichisbeingfeltaroundtheworld,hasdramatizedhow
Widespreadadoptionofplug-inelectricvehiclescoulddramaticallycutgree
患者,女性,32岁,5天前出现发热、乏力、恶心、食欲下降,查巩膜轻度黄染,肝肋下
地价与一般物品价格的不同之处是()。A、生产成本不同 B、折旧不同 C
甲公司于2020年1月1日取得乙公司20%有表决权股份,能够对乙公司施加重大影响
某混凝土工程招标工程量为900m3,综合单价为350元/m3。在施工过程中由于设
下列现浇混凝土需洒水养护不少于14d的有()。A、抗渗混凝土 B、缓凝型混凝土
某抗震设防的建筑按丁类设防,则其属于()。A.特殊设防类 B.重点设防类 C
属于现场动态管理内容的是( )。A.规章制度检查 B.日常抽查 C.定期检
最新回复
(
0
)