首页
登录
职称英语
The newly installed alarm system, which is directly connected to the police, wil
The newly installed alarm system, which is directly connected to the police, wil
游客
2025-06-15
16
管理
问题
The newly installed alarm system, which is directly connected to the police, will go off if the correct security code is not entered______ 60 seconds of touching the keypad.
选项
A、only
B、under
C、within
D、directly
答案
C
解析
备选答案为副词和介词。首先应分析句子结构，判断横线处应填入介词还是副词。乍一看应填入副词修饰被动结构is not entered，实际上if从句是被动语态， 60 secondsof touching the keypad应作状语。因此横线处应填入介词，从而构成介宾短语作状语。
转载请注明原文地址:https://tihaiku.com/zcyy/4119252.html
相关试题推荐
Thenewcomputerizedsecuritysystemnever,oratleast,______ever,requiresreb
Alloftheofficesinthenewcomplex______keylessentrysystems,videointerph
Newproceduresfortheoperationofthesecuritysystemwill______toensurethat
AeronauticSystems,Inc.,theBerlin-basedcompanyalsoknownasAeroSys,hasma
AeronauticSystems,Inc.,theBerlin-basedcompanyalsoknownasAeroSys,hasma
1.TheOne-CallSystemInmoststates,naturalgasindustry-supportedlawsrequi
1.TheOne-CallSystemInmoststates,naturalgasindustry-supportedlawsrequi
1.TheOne-CallSystemInmoststates,naturalgasindustry-supportedlawsrequi
Insteadofbuyingacommercialbookkeepingsystem,theaccountantsofFullmanFi
Thebakerynexttothepolicestation______byatalentedbakerwhosellshome-m
随机试题
Whatdoesthemanaskthewomanfor?[br][originaltext]M:HeyDiane.Wherecan
—Howdoyoudealwiththedisagreementbetweenthecompanyandthecustomers?—T
Mostearthquakesoccurwithintheupper15milesoftheearth’ssurface.But
Today,California’spublicschoolsareadisaster.【C1】______bydysfunctiona
Ω是由曲面z=x2+y2，y=x，y=0，z=1在第一卦限所围成的闭区域，f（x
定子电流中的极品负序分量在空气隙中产生的负序旋转磁场，与正序旋转磁场相同。（）
健康管理师在日常工作中贯彻以人为本，以健康为中心的原则，必须做到如下哪几项()A
饮食控制可以治疗的先天性疾病是A.黏多糖增多症 B.肝豆状核变性 C.苯丙酮
根据《票据法》的规定，下列关于汇票提示承兑的表述中，正确的有（ ）。A.见票后
在设计110kV变电站主接线时，当110kV线路为8回时，宜采用下列哪种接线？（
最新回复
(
0
)
