【单选题】关于OSI参考模型中的“服务”与“协议”,正确的说法是
【判断题】Many students and adults at workin the UK will have a "packed lunch", which only consists of a sandwich and a drink.
【简答题】附加题(阅读理解)。 Most young architects-particularly those in big cities-can only dream about working in a building of their own. And that dream come true often means finding a building no one else se...
【判断题】产品设计开发过程的质量管理是:策划 设计评审 试制
【单选题】关于OSI参考模型中的“服务”与“协议”,正确的说法是
A.
.“协议”是“垂直”的,“服务”是“水平”的
C.
.“协议”是“水平”的,“服务”是“垂直”的
【判断题】____电火花线切割加工机床主要用于沉孔和通孔零件的加工。