( )是植物长距离水分运输主要渠道。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='29830' and id < 2421033 and id<>'2421033' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='29830' and id > 2421033 and id<>'2421033' order by id asc limit 5