【单选题】—________ it going? —Great! [ ]
【单选题】— ________. — He's a doctor. [ ]
D.
What does he look like?
【简答题】PLC 采用 “ 顺序扫描、不断循环 ” 的方式进行工作。其工作过程分为 输入采样 、 程序执行 和( ) 三个阶段,并进行周期循环。
【简答题】看图,完成下列对话。 1. — What does Zhou Jielun do? — He is a ______________. 2. — What does Xu Beihong do? — He is an ______________. 3. — What does Chen Long do? — ______________ is an ______________. 4. — Wh...
【单选题】— ________ —He's a doctor. [ ]
D.
What does he look like?