下列各部位中尿素不易通透的是（      ）

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SQL Error: select id,body,options from ***_enewstiku where sourceid='25944' and id < 2179833 and id<>'2179833' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='25944' and id > 2179833 and id<>'2179833' order by id asc limit 5