【简答题】What were you up to when your parents came in?A. ____ for a while and ____ some reading. B. was playing; was going to do B. played; did C. had played; was going to do D. had played; did
【判断题】工作零线不得在漏电保护器负荷侧重复接地,否则漏电保护器不能正常工作。
【判断题】与十进制数63相应的二进制数是 00111111
【判断题】腘淋巴结浅群沿小隐静脉末端排列,引流外侧缘和小腿后外侧部的浅淋巴管。
【简答题】作业调度和进程调度各自的主要功能是什么?