如图所示是某节能型家用电饭锅(甲图)及简化的电路图(乙图).图是某节能型家用电饭锅(甲图)及简化的电路图(乙图).当S1 S2都闭合时,R1、R2 两个发热体同时给锅加热,处于高温加热状态.当
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![如图所示是某节能型家用电饭锅(甲图)及简化的电路图(乙图).图是某节能型家用电饭锅(甲图)及简化的电路图(乙图).当S1 S2都闭合时,R1、R2 两个发热体同时给锅加热,处于高温加热状态.当](/uploads/image/z/3517876-28-6.jpg?t=%E5%A6%82%E5%9B%BE%E6%89%80%E7%A4%BA%E6%98%AF%E6%9F%90%E8%8A%82%E8%83%BD%E5%9E%8B%E5%AE%B6%E7%94%A8%E7%94%B5%E9%A5%AD%E9%94%85%28%E7%94%B2%E5%9B%BE%29%E5%8F%8A%E7%AE%80%E5%8C%96%E7%9A%84%E7%94%B5%E8%B7%AF%E5%9B%BE%28%E4%B9%99%E5%9B%BE%29.%E5%9B%BE%E6%98%AF%E6%9F%90%E8%8A%82%E8%83%BD%E5%9E%8B%E5%AE%B6%E7%94%A8%E7%94%B5%E9%A5%AD%E9%94%85%EF%BC%88%E7%94%B2%E5%9B%BE%EF%BC%89%E5%8F%8A%E7%AE%80%E5%8C%96%E7%9A%84%E7%94%B5%E8%B7%AF%E5%9B%BE%EF%BC%88%E4%B9%99%E5%9B%BE%EF%BC%89.%E5%BD%93S1+S2%E9%83%BD%E9%97%AD%E5%90%88%E6%97%B6%2CR1%E3%80%81R2+%E4%B8%A4%E4%B8%AA%E5%8F%91%E7%83%AD%E4%BD%93%E5%90%8C%E6%97%B6%E7%BB%99%E9%94%85%E5%8A%A0%E7%83%AD%2C%E5%A4%84%E4%BA%8E%E9%AB%98%E6%B8%A9%E5%8A%A0%E7%83%AD%E7%8A%B6%E6%80%81.%E5%BD%93)
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