下列哪种物质的肾清除率能准确代表肾小球滤 过率（      ）

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SQL Error: select id,body,options from ***_enewstiku where sourceid='25944' and id < 2179861 and id<>'2179861' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='25944' and id > 2179861 and id<>'2179861' order by id asc limit 5