题目内容 (请给出正确答案) [单选题] 某电量变送器的输入输出特性为0~450V/4~20mA,在IDA-IO的配置中, X1、Y1、X2、Y2分别设置为() A.0,4, 450,20B.4,0,20,450C.0,0.004,450,0.02D.0.004,0,0.02,450 答案 查看答案