熬骨头汤吋，为提高骨头中钙质的溶解度，可加入少量（ ）。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='29949' and id < 2428172 and id<>'2428172' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='29949' and id > 2428172 and id<>'2428172' order by id asc limit 5