消费者均衡点处于无差异曲线与预算线相切处(    )

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='1833' and id < 119502 and id<>'119502' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='1833' and id > 119502 and id<>'119502' order by id asc limit 5