裸子植物茎的输导组织由（ ）组成。（多选）

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SQL Error: select id,body,options from ***_enewstiku where sourceid='29830' and id < 2421065 and id<>'2421065' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='29830' and id > 2421065 and id<>'2421065' order by id asc limit 5