第19题: [单项选择]Passage Three
Questions 17 to 20 are based on the passage you have just heard.
A. Men are stronger than women. B. Men are more talkative than women. C. Men use language more than women. D. Men have greater power than women. 参考答案:A
第28题: [单项选择]使用DES算法加密的算法步骤是()。 A. 将明文分组→初始置换→迭代运算→逆初始置换→输出64位码的密文 B. 初始置换→将明文分组→逆初始置换→迭代运算→输出64位码的密文 C. 初始置换→迭代运算→将明文分组→逆初始置换→输出64位码的密文 D. 将明文分组→初始置换→逆初始置换→迭代运算→输出64位码的密文 参考答案:A