经营者与消费者进行交易，应当遵循（    ）的原则。

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='50913' and id < 3255162 and id<>'3255162' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='50913' and id > 3255162 and id<>'3255162' order by id asc limit 5