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
考研
People talked about a promising idea: using the electrical wiring already in the house to move data from room to room. One ear
People talked about a promising idea: using the electrical wiring already in the house to move data from room to room. One ear
admin
2022-05-13
3
问题
People talked about a promising idea: using the electrical wiring already in the house to move data from room to room. One early application, the X10 system for controlling lights and appliances, didn’t always work well. The technology was certainly not ready to be used to bring web pages to computers anywhere in the house.
Along came the wireless network. For $ 50, you could get the Ethernet sprayed across the house and never be confined by a cord to the wall. It was slow in those early days, very unreliable, and open to interruption if you couldn’t bother with setting up the encoded passwords.
But it caught on. According to estimates made by Parks Associates, a market research firm based in Dallas, about 12.5 million homes now have wireless networks; another 10 million homes, mostly newer ones, have Ethernet.
Cheap and prevalent is a hard combination to beat. However, technology companies continued to work on the idea. A version for power lines called Home Plug came out in 2002, and while it hardly affected sales of wireless network equipment, it sold enough that major companies like Intel, Cisco Sony, Sharp and Comcast created the Home Plug Alliance to push for next-generation products, with the first to come out later this year.
Some companies are not waiting. Panasonic, Netgear, Maranta are already offering products that will move data through home electrical lines faster than routers using the current Wi-Fi standard for wireless networking.
Panasonic started selling its HD-PLC Ethernet adapters for power lines last month. One adapter is attached to a router with a short Ethernet cable and plugged into a nearby wall socket. The second device is plugged into a socket elsewhere in the house. When a computer is linked to it with an Ethernet cable, data is transmitted through the home’s electrical wiring at speeds of up to 190 megabits a second.
Netgear will be selling a similar system next month for about $ 300. It moves data at a slightly faster rate. Marantz says its ZR6001SP receiver will send music to special speakers in another room over power lines. The system includes both devices. The music listener controls the receiver and the CD players connected to it form a control pad on the speakers.
These products seem hopeless candidates. Who would like to pay two or three times expensive than wireless network? The answer lies in simplicity. "It’s why most people need us," Robert said, noting the complexity of installing wireless network is evident by the fact that return rates on wireless networking devices drop to nearly zero. The three products" makers said that people who cannot get whole-house coverage with a wireless system or those plagued by dead zones might find it appealing.
Who will probably most welcome the three products?
选项
A、People whose house has no space for wireless system.
B、People whose house cannot receive images, sounds or messages.
C、People who have no extra money to afford wireless system.
D、People who prefer to do things in a simpler way.
答案
B
解析
此题为细节判断题。文章最后一段的最后一句话指出:people who cannot get whole-house coverage with a wireless system or those plagued by dead zones might find it appealing.据此可知这些产品会受到那些屋子里不能全部被无线系统覆盖的人们,或是被盲区困扰的人们的欢迎。dead zones是指盲区,即没有信号,不能接收数据信息,因此B项符合题意。
转载请注明原文地址:https://kaotiyun.com/show/resa777K
本试题收录于:
MBA联考(英语)题库专业硕士分类
0
MBA联考(英语)
专业硕士
相关试题推荐
西双版纳植物园中有两种樱草,一种白花授粉,另一种非自花授粉,即须依靠昆虫授粉。近几年来,授粉昆虫的数量显著减少。另外,一株非自花授粉的樱草所结的种子比自花授粉的要少。显然,非自花授粉樱草的繁殖条件比白花授粉的要差。但是,游人在植物园多见的是非白花授粉樱草而
某女士过生日,8人烛光晚餐祝贺,竟然喝掉8瓶啤酒。原来,平均每个男人喝掉2瓶、每个女士喝掉1瓶、每3个孩童就喝掉1瓶。请问:参加烛光晚餐的女士共有几位?
一位计算机行业的资深分析专家认为,新型的超里格微机质量高、运转快而且价格比市场上其他任何一种品牌都低。因此,我们可以这样认为,超里格微机会很快发展成为销售快、价格低的现有微机的替代品。以下哪个选项如果为真,将最不能削弱上述观点?
大学生在大学里要学习很多知识,小王是一名大学生,所以他学习了很多的知识。以下哪项论证中的推理错误与上述论证中的最为相似?
研究人员发现,每天食用5份以上的山药、玉米、胡萝卜、洋葱或其他类似蔬菜可以降低患胰腺癌的风险。他们调查了2230名受访者,其中有532名胰腺癌患者,然后对癌症患者食用的农产品加以分类,并询问他们的其他生活习惯,比如总体饮食和吸烟情况,将其与另外1701人
[2018年第44题]中国是全球最大的卷烟生产国和消费国,但近年来政府通过出台禁烟令、提高卷烟消费税等一系列公共政策努力改变这一形象。一项权威调查数据显示,在2014年同比上升2.4%之后,中国卷烟消费量在2015年同比下降了2.4%,这是1995年来首次
李老师说“并非丽丽考上了清华大学并且明明没有考上南京大学。”如果李老师说的是为真,则以下哪项可能为真?Ⅰ.丽丽考上了清华大学,明明考上了南京大学。Ⅱ.丽丽没考上清华大学,明明没考上南京大学。Ⅲ.丽丽没考上清华大学,明
唯一可以知道一个人是否患上感冒的方法就是观察感冒的症状,因此,当有人被认为患有感冒时,这仅说明他表现出了感冒的症状,而没有理由据此预测他未来的症状。以下哪项中所描述的逻辑错误和上文论述中的最类似?
在新一年电影节的评比上,组委会准备打破过去的只有一部最佳影片的限制,而按照历史片、爱情片等几种专门的类型分别评选最佳影片,这样可以使电影工作者的工作能够得到更为公平的对待,也可以使观众和电影爱好者对电影的优劣有更多的发言权。根据上述信息,这种评比
Peopleinbusinesscanuseforesighttoidentifynewproductsandservices,aswellasmarketsforthoseproductsandservices.
随机试题
某建设项目建设期为三年,各年分别获得贷款2000万元、4000万元和2000万元,贷款分年度均衡发放,年利率为6%,建设期利息只计息不支付,则建设期第二年应计贷款利息为()万元。
关于基金销售行为的规范,下列说法错误的是()。
银行业金融机构审批要素中主要存在的问题有()。
有“陕西小江南”之美称的地形区是()。
市场上常有新气象,比如两种皮带在质地、款式、功能等方面相差无几,使用价值相差不大,但价格上的差别竞可以高达数倍甚至数十倍,实在让人惊异。问题在于品牌。一种皮带是名牌,另一种皮带不是名牌,这就是价格畸差的主要根据。在当今大多数商家和顾客看来,这种现象已经合情
下面哪项是主张货币供给外生性的理论学派()。
设n为任意正整数,则n3一n必有约数()。
当代的美国、日本、德国等社会各有其特点,它们属于()
设n为自然数,试证:
Whatisthemaninterestedinatthebeginningoftheconversation?
最新回复
(
0
)