.短路瞬间任何闭合回路的磁链保持不变。(    )

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69496' and id < 4501875 and id<>'4501875' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69496' and id > 4501875 and id<>'4501875' order by id asc limit 5