【单选题】(75) describes how to interact with the information system to accomplish specific tasks.
【单选题】( )describes how to interact with the informationg system to Accomplish specific task.
B.
Program specificationg
【单选题】( )describes how to interact with the information system to accomplish specific tasks.
【单选题】导入的原理图元件放在PCB文件的 ( )工作层面进行元件布局。
【单选题】导入的原理图文件放在 PCB 文件的 ( ) 工作层面进行元件布局。
【单选题】describes how to interact with the information system to accomplish specific tasks.
【单选题】导入的原理图文件后,元器件放在PCB文件的 ( )工作层面进行元件布局。
【简答题】如果类B是从类A继承而来的,则类A叫做类B的______,类B叫做类A的______。