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
外语
Technology has come to the marketplace. In many U. S stores the cash【C1】______has been replaced by a computer that quickly and e
Technology has come to the marketplace. In many U. S stores the cash【C1】______has been replaced by a computer that quickly and e
admin
2010-05-26
109
问题
Technology has come to the marketplace. In many U. S stores the cash【C1】______has been replaced by a computer that quickly and easily calculates the cost of items being bought.
Back in the early 1960s, when the laser【C2】______developed, it was viewed by some as a fascinating research tool; others called it a【C3】______toy. Since that time, the laser has proved to be an【C4】______of many uses. In fact, in many places it’s becoming a part of【C5】______life. Take, for example, what’s happening at some supermarkets. Food-shopping Americans are coming【C6】______with lasers and computers for the first time. But they’re hardly【C7】______it, until they get to the checkout line. With scarcely a glance at the items, the clerk【C8】______them across a hole, where a special marking on each item is scanned by a low-powered laser【C9】______inside the machine, connected to a remote computer. It started a few years ago, when food processors【C10】______the time had come to put code markings on every one of their thousands of food products. This would make them【C11】______identifiable to a computer. The scanning laser beam was an【C12】______device for reading these markings, and so the Universal Product Code was born.
【C13】______every package today, every can and bottle, has these unique symbols.【C14】______is the time-consuming stamping of prices on each item. Prices are shown【C15】______the shelf.
This mew technology promises to【C16】______food products moving smoothly on and off supermarket shelves, which will help keep overhead down and prices【C17】______At the end of each business day, the remotely-located computer gives the store manager a total picture of the day’s【C18】______--what the needs to restock,【C19】______, and what he can mark down and put on sale.
As for the customer, the most dramatic change is【C20】______checkout lines keep moving.
【C20】
选项
A、that
B、at which
C、where
D、the
答案
D
解析
转载请注明原文地址:https://kaotiyun.com/show/20V7777K
0
大学英语四级
相关试题推荐
HowtoRemember:SomeBasicPrinciplesHowdoyoucommunicatesomethingyou’veforgotten?Youcan’t!Now’sthetimetofit
BuyingOnlineWhybuyonline?It’slittlewonderthatnewbuyersquicklylearntoloveInternetshopping.Atthemoment,
Atacomputerexposition,BillGatesreportedlycomparedthecomputerindustrywiththeautoindustryandstated:"IfGeneralMo
A、Theycandobetterthanothers.B、Itisexpensivetohirelabor.C、Theydon’tliketobehelped.D、Theydon’ttrustothers.B
Realpolicemenhardlyrecognizeanyresemblancebetweentheirlivesandwhatthey【S1】______onTV—iftheyevergethomeintime
Forcenturiesmendreamedofachievingverticalflight.In400A.D.Chinesechildrenplayedwithafan-liketoythatspunupwar
Inmanycountries,itisnot【B1】______forfamiliesofdifferent【B2】______tolivetogetherinsharedspace.However,intheUni
StoppingSmoking:ASH’s15Tips—ActiononSmokingandHealth1.GetProfessionalHelpRingthehelplineonFreephone0
A、7.5dollars.B、8dollars.C、8.5dollars.D、9dollars.B
Someofthemostattractivetouristdestinationscanbebadforyourhealthifyoudon’tknowwhattherisksareandhowtoavoi
随机试题
简述中外秘书完成领导交办事项的相同相近之处。
A、阿斯综合征B、脑膜炎C、脑肿瘤D、肝昏迷E、休克下列哪项属于中枢神经系统炎性病变
男,30岁,上腹隐痛2年余,近半年来厌食、消瘦、乏力,先后2次胃镜检查均示胃体部大弯侧黏膜苍白,活检黏膜为中度不典型增生。对该患者的最佳治疗方法是
A.血中HbCO浓度升高B.化学性肺水肿C.主要表现为中枢神经系统症状D.造血功能异常E.肝血管肉瘤急性苯中毒()
在计算土地增值税时,房地产开发成本可以据实扣除,以下属于房地产开发成本的有()。
①他们保存历史的唯一办法是将历史当作传说讲述,由讲述人一代接一代地将史实描述为传奇故事口传下来②但是,没有人能把他们当时做的事情记载下来③这些传说是很有用的,因为它们能告诉我们以往人们迁居的情况④我们从书籍中可以读到5000年前近东发生的事情,那里
教师必须十分重视自身的发展,做到以身作则,为人师表,这体现了教师劳动的哪一特点?()
教师讲课时,从教学原理出发,采用“一题多解”的方法向学生讲授。教师的这种思维方式是
“三个代表”重要思想在邓小平理论的基础上,进一步回答了什么是社会主义、怎样建设社会主义的问题,创造性地回答了建设什么样的党、怎样建设党的问题,集中起来就是深化了对中国特色社会主义的认识。“三个代表”重要思想反映了当代世界和中国的发展变化对党和国家工作的新要
无符号二进制整数111110转换成十进制数是
最新回复
(
0
)