首页
登录
职称英语
Experiments in the photography of moving objects______in both the United States
Experiments in the photography of moving objects______in both the United States
游客
2023-10-20
59
管理
问题
Experiments in the photography of moving objects______in both the United States and Europe well before 1900.
选项
A、were conducting
B、have been conducting
C、had been conducted
D、had conducted
答案
C
解析
由后面的时间可知应填过去时态,而“before+时间”通常与完成时连用。
转载请注明原文地址:http://tihaiku.com/zcyy/3114567.html
相关试题推荐
(1)Virtuallyeverythingastronomersknownaboutobjectsoutsidethesolarsy
(1)ThenumberofwomendirectorsappointedtocorporateboardsintheUnited
(1)ThenumberofwomendirectorsappointedtocorporateboardsintheUnited
(1)Theearliestcontroversiesabouttherelationshipbetweenphotographyand
(1)PeopleintheUnitedStatesinthenineteenthcenturywerehauntedbythe
The________talksbetweenChinaandtheUnitedStateswerethebaseofthelate
WhichofthefollowingstatementsisINCORRECT?A、TheUnitedStatesisacountry
Asyoutouchpeople,surfacesandobjectsthroughouttheday,you________germs
A.benefitsB.differentC.eventuallyD.instrumentsE.movingF.
A.benefitsB.differentC.eventuallyD.instrumentsE.movingF.
随机试题
Afacialexpressionresultsfromoneormoremotionsorpositionsofthemus
正整数n的8倍与5倍之和,除以10的余数为9,则的个位数字为A.2 B.3
下列各项中,属于统计人员职务上的义务的有()。A.独立行使统计调查、统计报告、统
某生产企业2013年末的速动比率为1.2,该企业流动资产包括存货、待摊费用、货币
脾气虚证的大便性状是()A.便秘 B.黏液便 C.黏滞不爽 D.便溏
连环画是大众艺术。然而,面对大众的需求,是迎合还是引导,也是连环画家必须面对的问
期货公司接受客户全权委托进行期货交易的,对交易产生的损失,承担主要赔偿责任,赔偿
下列关于静脉注射脂肪乳剂的叙述中哪些是正确的A.原料一般选用植物油,如大豆油、麻
我国的《医学生誓言》颁布于A.1993年 B.1990年 C.1992年
(2020年真题)某双代号网络计划如下图,关于工作时间参数的说法,正确的有(
最新回复
(
0
)