利用对称分量法分析不对称短路时，基本相的选择原则是(    )。

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69458' and id < 4498288 and id<>'4498288' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69458' and id > 4498288 and id<>'4498288' order by id asc limit 5