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　Recognizing its importance is only the fist step to advocate invetion or innovation， and some effective measures should be taken for it. For one thing， our authority should continue to enlarge the recruit of graduate. For another， the conditions of scientists and skilled workers should be furth ...

ThreeColorFlags问题最早由E.W.Dijkstra所提出，塔所使用的用语为Dutch Nation Flag（Dijkstra为荷兰人），而多数的作者则使用Three-Color Flag来说明。 假设有一条绳子，上面有红，白，蓝三种颜色的旗子，起初绳子上的旗子颜色并没有顺序，您希望将之分类，并排列蓝，白，红的顺序，要如何移动次数才会最少，注意您只能 ...

AES, 即Advanced Encryption Standard高级加密标准模块, 它是目前国际上最先进的加密技术, 是基于DES之后的最新发布的高段加密标准. 该标准由美国NIST(National Institute of Standards and Technology)组织制定发布.