题目内容：
A.74.4
B.78.1
C.148.8
D.156.3
参考答案：【答案仅供学习，请勿对照自行用药等】
答案解析：
选择题：A.74.4 B.78.1 C.148.8 D.156.3
- 题目分类：公用设备师
- 题目类型：选择题
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A.74.4
B.78.1
C.148.8
D.156.3
A.74.4
B.78.1
C.148.8
D.156.3
A.0 B.1 C.3 D.2
A.0
B.1
C.3
D.2
A.触点KM1和KM2因未接入电路均处于断开状态 B.触点KM1闭合，KM2不变 C.触点KM1闭合，KM2断开 D.触点KM1不变，KM2断开
A.触点KM1和KM2因未接入电路均处于断开状态
B.触点KM1闭合，KM2不变
C.触点KM1闭合，KM2断开
D.触点KM1不变，KM2断开
A.2mg B.mg C.1/2mg D.1/4mg
A.2mg
B.mg
C.1/2mg
D.1/4mg
A. B. C. D.
A.
B.
C.
D.