图示电路原己稳定，t=0闭合开关，求t>0的电容电压叫⑴ 

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SQL Error: select id,body,options from ***_enewstiku where sourceid='32631' and id < 2594748 and id<>'2594748' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='32631' and id > 2594748 and id<>'2594748' order by id asc limit 5