切除空回肠后，不会影响下列哪种营养素的吸收

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SQL Error: select id,body,options from ***_enewstiku where sourceid='30450' and id < 2460237 and id<>'2460237' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30450' and id > 2460237 and id<>'2460237' order by id asc limit 5