下列定价策略中，采用产品线定价策略的是

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SQL Error: select id,body,options from ***_enewstiku where sourceid='28609' and id < 2335781 and id<>'2335781' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='28609' and id > 2335781 and id<>'2335781' order by id asc limit 5