什么是“耦合小、内聚大”原则，请简要说明。
数据通信有哪些特点？
从学习程度方面来说，学习重复的次数越多，就越不容易遗忘。当学习重复的次数达到能刚好完全背诵的时，对阻止遗忘的效果最好（）。 ["110%","150%","200%","200%以上"]
You create a Web Form. The Web Form allows users to recover their passwords. You add a PasswordRecovery server control by using the following code segment.You need to ensure that the server control generates a new password and sends it by e-mail to the users e?mail address. Which two actions should you perform? （） [" Create a valid definition in the Web.config file."," Set the passwordFormat attribute of the configured membership provider to Encrypted."," Ensure that the enablePasswordRetrieval attribute of the configured membership provider is set to False."," Ensure that the enablePasswordRetrieval attribute of the configured membership provider is set to True. <\/smtp>"]
采用D/P结算方式，出口商办理了出口信用保险，货物按时到达目的港，质量也没有问题，但遭到进口商的拒付，出口商可以凭保险单向保险公司索赔。
整数在计算机中是如何编码的？
