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
55
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.
【C15】
选项
答案
at
解析
此处是在表达“在(某地点)”,且at用于小地点,故答案填at。
转载请注明原文地址:https://kaotiyun.com/show/ehCd777K
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
Thegovernmentistobanpaymentstowitnessesbynewspapersseekingtobuyuppeopleinvolvedinprominentcases【21】______
Thegovernmentistobanpaymentstowitnessesbynewspapersseekingtobuyuppeopleinvolvedinprominentcases【21】______
Thegovernmentistobanpaymentstowitnessesbynewspapersseekingtobuyuppeopleinvolvedinprominentcases【21】______
Thegovernmentistobanpaymentstowitnessesbynewspapersseekingtobuyuppeopleinvolvedinprominentcases【21】______
Travelingcanbefunandeasy.Avacationtriptoanothercountryisespecially【21】______whenthetravelingconditionsareg
Whatmustyoumakesurewhenyouloadthecassette?
Whatmustyoumakesurewhenyouloadthecassette?
Whatmustyoumakesurewhenyouloadthecassette?
随机试题
精囊炎和雄性激素分泌不足时,可导致
洋地黄类药物经肝代谢,有肝病时应用洋地黄类药物应该
A.肺实变B.肺气肿C.肺不张D.气胸E.胸膜增厚病侧呼吸动度减弱伴叩诊为鼓音、呼吸音消失者,见于
角色过载冲突是指一个人的角色要求太多,工作量太大,不可能完成所有角色所要求的工作时所面临的冲突。根据上述定义,下列属于角色过载冲突的是()
某企业年产量5万件,年固定成本为20万元,其单位可变成本为12元,产品市场价格为20元/件,该企业当年免征销售税金,则该企业当年盈亏平衡点价格为每件()。
美国人约翰,在中国境内无住所,同时在中国境内、境外机构担任职务,2015年7月7日来华,11月11日离开。期间因工作原因,曾于9月20日离境,10月4日返回。在计算个人所得税时,2015年约翰在中国境内实际工作天数为()天。
读北半球某地区的海平面等压线图,完成下列问题。图中②③④处有可能出现连续性降水天气的是____________处。
【2015河北省属】良好的记忆品质有()。
我国心理学家在研究国外模式的基础上,提出了问题解决的一般认知过程模式,这一过程分为发现问题、_________、提出假设和检验假设。(2013·山东)
在党的七届二中全会上,毛泽东提出:“务必使同志们继续地保持谦虚、谨慎、不骄、不躁的作风,务必使同志们继续地保持艰苦奋斗的作风。”其根本原因是()
最新回复
(
0
)