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
What are the zebra stripes on the tomato soup cans and potato chip bags? They are special black and white vertical lines. These
What are the zebra stripes on the tomato soup cans and potato chip bags? They are special black and white vertical lines. These
admin
2019-10-21
24
问题
What are the zebra stripes on the tomato soup cans and potato chip bags? They are special black and white vertical lines. These black and white【C1】______ can be read by an optical scanner, or computer. The "scanner," which【C2】______the lines of code, is a small laser beam of light. When the light ray is broken by the black stripes, the computer "reads" the information about the product.
This code is【C3】______the Universal Product Code (UPC). It is designed【C4】______ add speed and efficiency to stores by using computers. It can do this in【C5】______ways. First, it is not necessary for workers to put individual prices on items.【C6】______using UPC, the computer can print out the accurate price of the item. Errors in prices are eliminated, or done【C7】______with. Also, the time spent checking out is reduced.【C8】______gives an itemized receipt to the customer【C9】______all the items, prices, and totals. The store clerk does not need to spend time checking the price on the item and punching it into the cash register. This UPC computerized system will probably save as【C10】______ as 45 percent of the checkout clerk’ s time.
What do the stripes mean? How does the computer interpret the stripes? The number【C11】______ below the vertical bars identifies the manufacturer and the manufacturer’ s item. As many as 10 trillion individual machine-readable numbers can be used with this system. In the example, the 0 on the left side means that it is a grocery item. The【C12】______51000 indicate the manufacturer. In this case it is the Campbell Soup Company. The【C13】______five digits, 00011, mean it is a can of tomato soup. The light rays from the light beam read these lines, and the message is sent directly to the computer. The computer【C14】______ finds the information about this product (price, inventory data) and sends it instantly back to the terminal【C15】______the checkout counter. At the same time, it keeps an inventory for the store manager. Many products have labels with these stripes.
【C6】
选项
答案
By
解析
此处是在说明通过使用UPC(通用产品代码),电脑可以打印出商品的精确价格,且位于句首,故答案填By。
转载请注明原文地址:https://kaotiyun.com/show/KhCd777K
本试题收录于:
公共英语四级笔试题库公共英语(PETS)分类
0
公共英语四级笔试
公共英语(PETS)
相关试题推荐
"Ido."ToAmericansthosetwowordscarrygreatmeaning.Theycanevenchangeyourlife.Especiallyifyousaythematyourow
Thegovernmentistobanpaymentstowitnessesbynewspapersseekingtobuyuppeopleinvolvedinprominentcases【21】______
Thegovernmentistobanpaymentstowitnessesbynewspapersseekingtobuyuppeopleinvolvedinprominentcases【21】______
Thegovernmentistobanpaymentstowitnessesbynewspapersseekingtobuyuppeopleinvolvedinprominentcases【21】______
Whatmustyoumakesurewhenyouloadthecassette?
Travelingcanbefunandeasy.Avacationtriptoanothercountryisespecially【21】______whenthetravelingconditionsareg
Travelingcanbefunandeasy.Avacationtriptoanothercountryisespecially【21】______whenthetravelingconditionsareg
Travelingcanbefunandeasy.Avacationtriptoanothercountryisespecially【21】______whenthetravelingconditionsareg
Whatmustyoumakesurewhenyouloadthecassette?
随机试题
血栓闭塞性脉管炎病人夜间常屈膝抱足而坐的主要原因是()
A.维生素EB.维生素B1C.维生素B6D.维生素B2E.维生素C
李某以6000元价格购买一台笔记本电脑,并当即到保险公司投保了家庭财产保险,附加盗窃险,保险金额6000元。后这台笔记本电脑被盗,此时这种牌子的笔记本电脑已调价到7200元。保险公司应如何赔付?()
专项贷款最主要的还款来源是()。
下列股利政策中,基于股利相关论确立的有()。
人力资源评价是指评价员工对()的有价值的活动。
A、7B、14C、21D、28B28.8÷3.6×2=16,13.8÷2.3×2=12,11.9÷1.7×2=(14)。
构造正交矩阵Q,使得QTAQ是对角矩阵
已知A是2×4矩阵,齐次方程组Ax=0的基础解系是η1=(1,3,0,2)T,η2=(1,2,一1,3)T,又知齐次方程组Bx=0的基础解系是β1=(1,1,2,1)T,β2=(0,一3,1,α)T,求矩阵A;
处理机主要由处理器、存储器和总线组成。总线包括__________。(2009年上半年试题)
最新回复
(
0
)