单项选择题
计算机联锁系统一般包含下列哪些层次?A、物理层B、人机会话层C、联锁层D、监控层
单项选择题计算机联锁系统一般包含下列哪些层次?
Choose an appropriate expression to fill in the blank. ...
单项选择题Choose an appropriate expression to fill in the blank. Two out of five ACET clients in Scotland are women and ________ we anticipate an increase in the number of children needing care.
以下哪几位文人是一家人?A、阮瑀B、阮籍C、阮咸D、嵇康
单项选择题以下哪几位文人是一家人?