谐波分析法也适用于非线性电路的求解。（      ）   

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='68472' and id < 4420973 and id<>'4420973' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='68472' and id > 4420973 and id<>'4420973' order by id asc limit 5