下列关于字节的4条叙述中,正确的一条是A.字节通常用英文单词“bit”来表示,有时也

题型:单项选择题

问题:

下列关于字节的4条叙述中,正确的一条是

A.字节通常用英文单词“bit”来表示,有时也可以写做“b”

B.目前广泛使用的Pentium机其字长为5个字节

C.计算机中将8个相邻的二进制位作为一个单位,这种单位称为字节

D.计算机的字长并不一定是字节的整数倍

考点:计算机等级考试B笔试一级B笔试
题型:单项选择题

下列试验中,不能测定病毒蛋白的方法是()

A.蛋白电泳

B.免疫荧光技术

C.酶免疫技术

D.放射免疫技术

E.Northern-blot技术

题型:单项选择题

Several years ago, at the height of the dotcom boom, it was widely assumed that a publishing revolution, in which the printed word would be supplanted by the computer screen, was just around the corner. It wasn’t: for many, there is still little to match the joy of reading a printed book and settling down for one hour. But recently some big technology companies, including Google, Amazon, Microsoft and Yahoo, contend that the dream of bringing books online is still very much alive.

The digitizing of thousands of volumes of print is not without controversy. On Thursday, Google, the world’ s most popular search engine, posted a first installment of books on Google Print. This collaborative effort between Google and several world’s leading research libraries aims to make books available to be searched and read online free of charge. Although the books included so far are not covered by copyright, the plan has attracted the rage of publishers.

Five large book firms are suing Google for violating copyright on material that it has scanned and, although out of print, is still protected by law. Google has said that it will only publish short extracts from material under copyright unless given express permission to publish more, but publishers are unconvinced. Ironically, many publishers are collaborating with Google Print Publisher, which aims to give readers an online taste of books that are commercially available. The searchable collection of extracts and book information is intended to tempt readers to buy the complete books online or in print form.

Amazon, the world’s largest online retailer, has made plans to enter the mass e-book market by selling a vast array of goods. Given that Google should impinge upon its central territory, Amazon revealed that it would introduce two new services. Amazon Pages will allow customers to search for key terms in selected books and then buy and read online whatever part they wish. Amazon Upgrade will give customers online access to books they have already purchased as hard copies. Customers are likely to have to pay five cents a page, with the bulk going to the publisher.

Microsoft has also joined the online-book trend. In October, the software giant said it would spend around $ 200 million to digitize texts, starting with I50,000 that are in the public domain, to avoid legal problems. It will do so in collaboration with the Open Content Alliance. And on Thursday, coincidentally the same day as Google and Amazon announced their initiatives, Microsoft released details of a deal with the British Library, the country’s main reference library, to digitize some 25 million pages ; these will be made available through MSN Book Search, which will be launched next year.

Which is the best title for the text()

A. A Publishing Revolution

B. Amazon, the Largest Online Retailer

C. Online Books, a Prospering Service

D. Competition between Publishers and Net Companies

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要求细菌总数不超过1000个/立方米的区域有

A.检验室

B.灌装间

C.成品库

D.原料库

E.包装材料库

题型:单项选择题

网约车平台公司应当在取得相应《网络预约出租汽车经营许可证》并向企业注册地省级通信主管部门申请互联网信息服务备案后,方可开展相关业务。备案内容包括经营者真实身份信息、接入信息、出租汽车行政主管部门核发的《网络预约出租汽车经营许可证》等。

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2010年4月9日至11日,国务院 * * 温 * * 在蚌埠、池州两地考察,就加快转变经济发展方式、产业结构调整升级等进行调研,通过结构调整促进经济发展体现的哲学道理是()

A.事物的量变能够引起质变

B.事物的质变是量变的必然结果

C.整体功能大于部分功能之和

D.部分功能之和大于整体功能

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