对称分量法不能用于非线性系统。  ()（0.5）

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69421' and id < 4494943 and id<>'4494943' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69421' and id > 4494943 and id<>'4494943' order by id asc limit 5