It is NOT mentioned in the passage that codes and ciphers are used for the purpose of ___. A. military affairs B. commercial secrets C. scientific achievements D. personal E. njoyment 相关知识点: 试题来源: 解析 C 解析:细节理解题。第二段提到了密码和暗码的军事作用,第三段提到了其在保护...
阅读下面短文,根据所读内容在表格中的空白处填入恰当的单词注意:每个空格只填一个单词。Codes and ciphers(暗玛)If you and your friend
(九)71.Codes and ciphers 72.In business (world or circle) 73.through the holes 74.meaningful (useful) information/messages 75.Purposes/Aims 76.send secret messages/information 77.informed/know/learn/aware/conscious 78.To hide plans/information/messages 79.keep secrets 80.Defeating...
A. Codes and ciphers B. Differences between codes and ciphers C. History of codes and ciphers D. Inventors of codes and ciphers 相关知识点: 试题来源: 解析 A 解析: 主旨大意题。 文章第一段点明了本文的中心话题, 密码和暗码是有效保护秘 密的两种方式,所以 A 项最能概括文章大意。 答案: A反...
18Today a prospective new comer is sen to what might be called a spy school where his training is more extensive.He must master codes and ciphers(密码) and develop an extremely great memory because writing them down willbe too dangerous. He must become a skilled radio operator and be able...
Ciphers (暗码) are another. In a code each word is written as a secret code word or a code number. In a cipher each letter is changed. Codes and ciphers have played an important role in the history of the world. Julius Caesar, the Roman ruler who defeated almost all the countries in...
(暗码)are another. In a code each word is written as a secret code word or a code number. In a cipher each letter is changed. Codes and ciphers have played an important role in the history of the world. Julius Caesar,the Roman ruler who defeated almost all the countries in Europe ...
百度试题 结果1 题目中国大学MOOC: 对于周期置换密码,用给定的密钥(2,4,1,3),对以下明文进行加密:codes and ciphers are fun 相关知识点: 试题来源: 解析 dceonsdapchisearfruexnxx 反馈 收藏
6) Codes and ciphers are different ways to ___ a message. Encrypt Decrypt Both A and B All of the mentioned above Answer:c) Both A and B Explanation: Codes and cyphers are two separate methods of encrypting and decrypting messages. Using a code, you may make any message more or less ...
Codes and ciphers72.In business(world or circle)73. through the holes 74. meaningful (useful) information/messages75. Purposes/Aims 76. send secret messages/information77. informed/know/learn/aware/conscious 78.T o hide plans/information/messages79.keep secrets80.Defeating ...