It was only after some progress______ in the use and development of electric cur

游客2024-09-24 66

问题 It was only after some progress______ in the use and development of electric current that men began to realize the importance and possibilities of magnetism.

选项 A、was made
B、would have been made
C、has been made
D、had been made

答案 D

解析分析题干可知，本题陈述的是发生在过去的事实，而非虚拟，故排除[B]。由only after…that…“只有…之后，才…”可知，电流的使用和发展上的进步发生在人们意识到磁场的重要性之前，即前一个动作完成之后才会有后一个动作，因而填空处需要使用过去完成时，故答案为[D]。

转载请注明原文地址:https://www.tihaiku.com/zcyy/3771664.html

相关试题推荐

Thesocialdevelopmentandtechnologicaladvancesarechangingthewaypeopl
Theprocessofthedevelopmentofmodernizationcanbemeasuredbythelevelof
WhatistheprimarypowerofSouthKorea’seconomicprogressintheseyears?[or
The______madeslowbutsureprogressalongthemainstreet.A、procedureB、profess
Withtherapiddevelopmentoftechnology,smartphoneshavesweptthewhole
Collegeisoneofthemostcrucialperiodsinthegrowthanddevelopmentof
Asadevelopingcountry,wemustkeep______withtherapiddevelopmentofthewor
Inthepresenteconomic______wecanmakeevengreaterprogressthanpreviously.A
Themoreyouhurry,______.A、youarelikelytomakelessprogressB、thelessyou
Asadevelopingcountry,wemustkeep______withtherapiddevelopmentofthewo

随机试题

Sugar—FriendVSEnemyA)Sugariseverywhere.It’sinour
隧道施工监控测点一般设置在距开挖工作面2m范围内，开挖后24h内，下次爆破前测取
（）部位受伤时应采用“8”字形包扎法。A.额头、手腕 B.前臂、大腿 C.
下列八脉交会穴所通奇经错误的是()A.后溪--督脉 B.外关--阳维脉
LD催化乳酸生成丙酮酸的反应较适当的pH是A.10.5B.9.0C.7.6D.7
胡锦涛同志在党的十七大报告中指出，改革开放以来我们取得一切成绩和进步的根本原因，
n为100以内的自然数，那么能令2n-1被7整除的n有多少个？
大蓟、小蓟皆可用于治疗（　　） A.肝火目赤 B.肺热咳嗽 C.胃火牙痛
根据企业所得税法律制度的规定，企业应当自纳税年度终了之日起一定期限内，向税务机关
()是计算机主机的核心部件，主要功能是按照程序给出指令序列，分析并执行指令。A:

最新回复(0)

It was only after some progress______ in the use and development of electric cur

Thesocialdevelopmentandtechnologicaladvancesarechangingthewaypeopl

Theprocessofthedevelopmentofmodernizationcanbemeasuredbythelevelof

WhatistheprimarypowerofSouthKorea’seconomicprogressintheseyears?[or

The______madeslowbutsureprogressalongthemainstreet.A、procedureB、profess

Withtherapiddevelopmentoftechnology,smartphoneshavesweptthewhole

Collegeisoneofthemostcrucialperiodsinthegrowthanddevelopmentof

Asadevelopingcountry,wemustkeep______withtherapiddevelopmentofthewor

Inthepresenteconomic______wecanmakeevengreaterprogressthanpreviously.A

Themoreyouhurry,______.A、youarelikelytomakelessprogressB、thelessyou

Asadevelopingcountry,wemustkeep______withtherapiddevelopmentofthewo

Sugar—FriendVSEnemyA)Sugariseverywhere.It’sinour

隧道施工监控测点一般设置在距开挖工作面2m范围内，开挖后24h内，下次爆破前测取

（）部位受伤时应采用“8”字形包扎法。A.额头、手腕 B.前臂、大腿 C.

下列八脉交会穴所通奇经错误的是()A.后溪--督脉 B.外关--阳维脉

LD催化乳酸生成丙酮酸的反应较适当的pH是A.10.5B.9.0C.7.6D.7

胡锦涛同志在党的十七大报告中指出，改革开放以来我们取得一切成绩和进步的根本原因，

n为100以内的自然数，那么能令2n-1被7整除的n有多少个？

大蓟、小蓟皆可用于治疗（ ） A.肝火目赤 B.肺热咳嗽 C.胃火牙痛

根据企业所得税法律制度的规定，企业应当自纳税年度终了之日起一定期限内，向税务机关

()是计算机主机的核心部件，主要功能是按照程序给出指令序列，分析并执行指令。A:

大蓟、小蓟皆可用于治疗（　　） A.肝火目赤 B.肺热咳嗽 C.胃火牙痛