State Kerckhoff's principle. Explain briefly why a cryptosystem designed by someonewho follows this principle is likely to be stronger than one designed by someone who does not. (6 p)
举一反三
- When the opposition tries to present a better principle, they need to provide an alternative principle, and explain why this alternative principle is better than the proposition one.
- Remember, e-mail is not designed for _________ response (that’s why you have a telephone), it’s designed for convenience.
- About international business etiquette, correct statements are: (More than one answer) A: It is based on British etiquette. B: It follows the principle of “Taking right as the priority.” C: It is produced in the process of commodity exchange. D: It is the etiquette principle and method that should be followed in international business activities.
- In the understanding of communicative language teaching, three principles have been generally agreed upon, namely, ______ principle, ______ principle, and ______ principle.
- 中国大学MOOC: The Politeness Principle is a substitute for the Cooperative Principle.