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某实验小组的同学设计了如图l所示的电路测量菜电阻R，的阻值，实验室提供的器材能够满足实验要求． （l）请将如图2所示的实物图连接完整． （2）若电压表的示数为U1，内阻为RV，电压表的示数为U2...
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高三下学期物理《》真题及答案
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