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单选题
2438. 当靶标移动到或离开临近传感器激活区域则将改变临近传感器电子性能。
A
When the target moves to or leaves the working area of the adjacent sensor,the electronic information of the adjacent sensor will be changed.
B
When the target moves into or out of the proximity-sensor＇s actuation area, it causes a change In the proximity sensor＇s electrical property.
C
When the target enters or leaves the active region of the adjacent sensor,the electronic signal of the adjacent sensor will be changed.
答案解析
正确答案：B
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