设u（-∞）=0V，则电容元件在任何时刻t储存的磁场能量为0.5。（）

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SQL Error: select id,body,options from ***_enewstiku where sourceid='32669' and id < 2598577 and id<>'2598577' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='32669' and id > 2598577 and id<>'2598577' order by id asc limit 5