题目内容 (请给出正确答案)
提问人:网友c********1 发布时间:2022年4月6日 10:07
[单项选择题]

可通过在()输出端对电动水阀控制点发出百分比的开阀控制命令,实现电动水阀的位置变化。

A.DDC;

B.传感器;

C.变送器;

D.阀门。

参考答案
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