首页
登录
职称英语
Good locks on all outside and first floor windows are essential to a home’s s
Good locks on all outside and first floor windows are essential to a home’s s
游客
2023-09-27
61
管理
问题
Good locks on all outside and first floor windows are essential to a home’s security and will go a long way toward discouraging burglars. But an added protective device that is increasingly being used in homes is the burglar system, which sounds a loud bell, horn, or siren (警报器) when someone tries to break in. Although this will not always prevent entry by a determined professional burglar, it is often enough to scare off vandals (故意破坏他人财物者) and spurn-of-the- moment thieves who account for a high percentage of residential break-ins.
Security alarm systems have been available for many years and have long been common in commercial and industrial establishments and in large homes. But until the last few years, these systems were almost always professionally installed because they required complicated wiring techniques, individualized design, and sometimes lots of carpentry, all of which made them expensive.
To answer the demand for low-cost alarm systems that can be easily installed, several companies now make alarms that are specifically designed for do-it-yourselfers. These systems come with detailed installation instructions and usually do not require inside-the-wall wiring.
选项
A、Do-it-yourself burglar systems are not as effective as those professionally installed.
B、Burglars alarm systems for home use have just recently been made available.
C、There are more burglar alarm systems in homes today than there were a few years ago.
D、Burglar alarm systems for the home will not prevent entry by a professional burglar.
答案
C
解析
第一段第二句表明这种装置被越来越多的家庭所采用。
转载请注明原文地址:https://tihaiku.com/zcyy/3050876.html
相关试题推荐
Eveninsmallcompanies,computersarea(n)______tool.A、naturalB、essentialC、ca
[originaltext]W:Isitstillrainingoutside?M:No,butthewindisstillblow
[originaltext]W:Isitstillrainingoutside?M:No,butthewindisstillblow
[originaltext]W:Isitstillrainingoutside?M:No,butthewindisstillblow
Noiseisunpleasant,______whenyouareabsorbedinreading.A、essentiallyB、espe
[originaltext]W:Isitstillrainingoutside?M:No,butthewindisstillblow
[originaltext]W:Isitstillrainingoutside?M:No,butthewindisstillblow
[originaltext]W:Isitstillrainingoutside?M:No,butthewindisstillblow
It’sessentialforaspeakertoknow______toaccomplishinhisspeech.A、howB、wh
—Howabouteighto’clockoutsidethecinema?—That_______mefine.A、fitsB、meets
随机试题
[originaltext]M:Whathappenedtoyoutoday?W:IwenttotheMusicFestivalin
______isknowntousall,themoonmovesaroundtheearth.A、ThatB、AsC、WhichD、
Atrulyinformeddinerwouldchoosearestaurantbasedonthequalityofthe
B
铰链弹性附着体A.允许基牙与附着体之间同时作垂直向和铰链两方向上的移动 B.允
甲公司为增值税一般纳税人,主营业务是生产电视机。于2017年,由张某、王某、李某
所有权的内容包括()。A.占有权 B.处分权 C.使用权 D
(2011年)下列测量方法中,可用于建立国家一、二等高程控制网的方法包括
根据《工程咨询行业管理办法》,关于工程咨询单位资信评价的说法,错误的有()。A.
下列关于射水沉桩法的选择,说法正确的是()。A.在砂夹卵石层一般以锤击为主
最新回复
(
0
)