【单选题】
正.负极电源之间，合闸和跳闸之间的端子一般需要用一个空端子隔开，目的是___。
A. 整齐.美观；
B. 便于查找回路；
C. 维护方便；
D. 以免端子受潮造成短路；
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答案
D
解析
暂无解析
相关试题
【单选题】
交流电流回路端子中，对于同一保护方式的电流回路一般排在一起，按数字___。
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断路器控制回路的红色指示灯是与___的，它既反映了断路器是否处于合闸状态，又监视了跳闸回路的完整性。
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断路器控制回路的绿色指示灯是与___的，它既反映了断路器是否处于分闸状态，又监视了合闸回路的完整性。
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DL-10系列电磁式电流继电器中接点规格有：一对常开接点；一对常闭接点；___接点。
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瞬时电流速断保护与过电流保护相比，区别之一是瞬时电流速断保护是通过___来获得动作的选择性。
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延时电流速断保护的动作时间一般为___，定时限过电流保护的动作时间一般为（ ）。
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【单选题】
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【单选题】
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【单选题】
人生目的是人在人生实践中关于自身行为的根本指向和人生追求，它所认识和回答的根本问题是___
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C. 怎样对待人生境遇
D. 怎样选择人生道路
