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【简答题】
(武汉理工大学2009年考研试题)电路如图5一26所示，已知U 2 =2U 1 ，R 1 =R 2 ，R 4 =R 5 ，试求：(1)输出电压U 01 =(2)输出电压U=
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刷刷题刷刷变学霸
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