题目内容：
直接对控制对象进行操作的元件称为（）
A.给定元件
B.放大元件
C.比较元件
D.执行元件
参考答案：
选择题：直接对控制对象进行操作的元件称为（）
- 题目分类：慕课
- 题目类型：选择题
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