共查询到20条相似文献，搜索用时 140 毫秒
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在实验室评估中,认识到综合性、设计性实验的重要性。为使单片机实验更具有实用型、趣味性,采用了从生活中选题(保管箱的控制),设计电路,编写程序,实现控制的方法。增强了学生思维和动手能力,有一定的效果。 相似文献
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选一个Windows自带的图形文件,或利用屏幕截取制作一张程序画面,将用户和密码加密后用BMP 文件进行隐藏,使一般用户不知道密码的存放地点,对密码起到保护功能。 相似文献
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顾巧论 《天津职业技术师范学院学报》2001,11(3):20-23
主要从软件安全的角度出发，介绍了一种保护软件密码不被查看的方法。该方法使用数据库存放加密后的动态密码，能起到很好的保护作用。 相似文献
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在现代办公室和实验教学过程中 ,很多用户将重要资源和文件都进行加密工作 ,但丢失了密码 ,则无法打开系统的软硬件资源文章对 WINDOWS登录系统密码、INTERNET中的网页密码、屏幕保护程序密码、 CMOS密码、用户 E— MAIL邮箱密码及 WPS文件密码给出了一些寻找密码的方法和程序。 相似文献
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高红霞 《太原教育学院学报》2002,20(4):77-79
随着计算机应用的日益广泛深入和计算机网络的普及，为保证计算机系统和网络通信和正常运行，计算机的安全问题已日益受到广泛的关注和重视。对于时下广大的网络用户来说，通过拨号方式来实现网络接入还是较为普遍的一种途径，黑客的入侵经常通过拨号网络来实现的，所以如何提高拨号网络的安全已经成为非常重要的问题。 相似文献
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赵广林 《河南广播电视大学学报》2001,(1):50-52
WPS件在读写时可加入密码，提高件的保密程度。但是如果用户忘记了密码，或由于异常情况密码被改变，或没有密码的件被机器自动加上密码，均会给用户带来麻烦。本介绍了给WPS件自动解密和处理WPS件异常加密的方法。 相似文献
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罗艳萍 《读与写:教育教学刊》2008,5(6)
The communication of people partially is the communication of cultures. Culture has a direct effect on international commercial activities in all aspects. Different conceptions about time, space, equality, law and the like, lead people to deal with things in different ways. So to know cultures of the counterpart is to facil-itate our enterprises so as to have a smooth and successful communication in commercial activity. 相似文献
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Richard Denner 《海外英语》2007,(4):14-15
Rosco and I wait for the fishermen to return.I sit at a wooden bench near the store at Mt.Baker Resort and watch the clouds change shape. Rosco has my belt around his neck and an eight foot tow chain hooked to a tree. Dogs must be on a leash. Ducks and rabbits are loose. 相似文献
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Given a graph G,a subgraph C is called a clique of G if C is a complete subgraph of G maximal under inclusion and |C|≥2. A clique-transversal set S of G is a set of vertices of G such that S meets all cliques of G. The clique-transversal number, denoted as TC (G), is the minimum cardinality of a clique-transversal set in G. The clique-graph of G, denoted as K (G), is the graph obtained by taking the cliques of G as vertices, and two vertices are adjacent if and only if the corresponding cliques in G have nonempty intersection. Let F be a class of graphs G such that F={G|K(G) is a tree}. In this paper the graphs in F having independent clique-transversal sets are shown and thus TC (G)/|G|≤1/2 for all G ∈ F. 相似文献
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《海外英语》2007,(5):10-11
Many college freshmen arrive woefully unprepared to do college work, and as disadvantaged populations continue to grow, the share of the American work force that has made it through college is expected to plummet. Many experts blame that educational failure not just on high schools but also on colleges. School & College, a special report by The Chronicle, looks at efforts to fix the system. What reforms would better prepare students for college? What should schools and colleges be doing differently? How should state and federal officials help? 相似文献
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陈美曦 《山东教育学院学报》2008,23(2):103-107
Different nations have different social cultures, and the social culture of every nation is developing with the development of the nation, language is greatly influenced by social culture, which enables language to possess national and historical characteristics. Word is the smallest, independent, meaningful linguistic unit of language. It can well reflect the national and historical characteristics. From synchronic aspect, the social and cultural influence on word meaning is mainly embodied in conceptual and associative meanings of word. The incorrespondence of word meaning is a phenomenon that exists in both conceptual and associative meanings of word among different languages. From diachronic aspect, the development of social culture causes some changes of word meaning to some extent. Therefore, social culture plays a key role in vocabulary learning and mastery of a language. 相似文献
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邱崇丙 《唐山师范学院学报》2014,(1):21-23
汉字的六书,《说文》对“转注”一类,语焉不详。后世学者提及转注,也仅限于许慎所举出的例字。《汉字例说》一文,作者从转注的角度综合考虑,对部分现代常用字作了分析,跟传统的解释有所不同。希望能抛砖引玉,互相切磋,以推进学术研究。 相似文献
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《海外英语》2007,(4):36
There are numbers of crossroads on our long and unpredictable life journey where we totally have no idea about which direction to choose. No matter what our decision is, we should not turn back, but face the music and go ahead instead. I am this kind of girl who always does try without regretting, one example is how I dealt with my love. 相似文献