培养支原体时，在培养基中最必需含有的成分是

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SQL Error: select id,body,options from ***_enewstiku where sourceid='24407' and id < 2101662 and id<>'2101662' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='24407' and id > 2101662 and id<>'2101662' order by id asc limit 5