【简答题】试题一 论软件维护及软件可维护性 软件维护指软件交付使用后,为了改正错误或满是新的需要而修改软件的过程。软件维护活动花费了整个软件生命期成本的50~90%,要降低维护成本,需要提高软件的可维护性。软件可维护性(Software Maintainability)是指软件能够被理解、校正、增强功能及适应变化的容易程度。提高软件的可维护性是软件开发阶段的关键目标之一。 请围绕“软件维护及软件可维护性”论...
【多选题】在一个 8位的存储单元中,能够存储的最大无符号整数是
【单选题】在一个8位的存储单元中,能够存储的最大无符号整数是 。
【单选题】Where does John live?
【多选题】在一个 8 位的存储单元中,能够存储的最大无符号整数是
【单选题】---Where does John live? ---He lives on ______ floor but he doesn’t use a lift to go up and down.
【简答题】听短文,回答问题。 1. Where does John live? [ ] A. He lives near David. B. He lives far away from David. C. He and David live in the same house. 2. What does David help John with? [ ] A. His Maths home...
【单选题】—Where does John live? —He lives on _____ floor but he doesn't use a lift to go up and down. [ ]