首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
专升本
It used to take Redwood City, California police hours to locate gunfire. Now, they have a new tool that helps them find the gunf
It used to take Redwood City, California police hours to locate gunfire. Now, they have a new tool that helps them find the gunf
admin
2011-06-28
24
问题
It used to take Redwood City, California police hours to locate gunfire. Now, they have a new tool that helps them find the gunfire quickly. This new tool is called the ShotSpotter. The police began using the ShotSpotter in 1995. They wanted to cut down on gunfire in their city.
One ShotSpotter covers a square mile. Eight microphones are put on the roofs of buildings. These microphones pick up gunfire noise. It only takes seven seconds to report the gunfire to the police. Then a red dot on the police map shows where the action is.
The ShotSpotter really works well. It locates the gunfire within 20 to 40 feet plus or minus. Redwood City police are very happy with the ShotSpotter. They think it might have helped catch the D.C. sniper.
ShotSpotters cost a lot of money. One of them sells for $200,000. Despite the cost, ShotSpotters can be a big help in fighting crime.
Eight microphones placed on rooftops ______ .
选项
A、talk to police
B、warn the public
C、listen for gunfire
D、play rap music
答案
C
解析
参见第二段:麦克风放在房顶上是为了监听到打枪的声音。
转载请注明原文地址:https://kaotiyun.com/show/6PlC777K
本试题收录于:
英语题库成考专升本分类
0
英语
成考专升本
相关试题推荐
Thisletterismostprobablywrittenby______.Fromthepassage,wecanlearnthattheauthorlooksontheworld______.
Theclassroomisprovidedwithsomevisualaids______English.
Americanarecarefulabouthowandwhentheymeetoneanother’seyes.Intheirnormalconversation,eacheye【B1】lastsonlyabo
Americansenjoyfastfoodmainlybecause______.Accordingtothetext,adrive-inwindowis______.
Itisreportedthatanincreasingnumberofpeople______buildingmorenuclearpowerplants.
Asitwasastormynight,______peoplewenttoseethefilm.
Althoughheroesmaycomefromdifferentcultures,they______.MadonnaandMichaelJacksonarenotconsideredheroesbecause__
DuringtheChristmasshoppingrushinLondon,theinterestingstorywasreportedofatramp(流浪者)who,apparentlythoughnofaul
Awarm-heartednurseonherfirstday’sworkcametoapatientwhohadcometoLondonforavisittothefamousdoctor.Sheaske
Hishandwritingis______yours.
随机试题
甲向乙转让“东升”注册商标,乙从何时起享有该注册商标专用权【】
计算定积分I=∫01xarctanxdx.
多尿可见于
某股份有限公司因监事会成员任期届满,重新选任监事,需对章程中有关记载事项予以变更。依照《公司法》的规定,就该股份有限公司修改章程时须遵守的规定,下列说法错误的有:
背景资料:某市政工程,业主与监理、施工单位分别签订了工程监理合同和工程施工合同。施工单位编制的进度计划符合合同工期要求,并得到了监理工程师批准。进度计划如下图所示:施工过程中,发生了如下事件:事件一:由于施工方法不当,打桩工
方先生为境内某上市公司雇员,每月工资3000元。2014年6月28日,该公司实行股票期权计划,授予方先生不可公开交易的股票期权50000股,授予价2.5元/股,并约定2014年12月28日起方先生可以行权,行权前不得转让。2014年12月28日方先生以授予
下列出口货物不适用增值税免税并退税政策的是()。
关于责任保险的说法,正确的是()。
企业发生的销售退回,均应在发生时冲减发生当期的销售商品收入,同时冲减当期销售商品成本以及税金。()
A、Theyonlygetmoisturefromrainfall.B、Theyneedmoremoisturethantreeselsewhere.C、Theycanlivealonglifewithoutwate
最新回复
(
0
)