不属于嘌呤核苷酸从头合成的直接原料 的是

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SQL Error: select id,body,options from ***_enewstiku where sourceid='29770' and id < 2417166 and id<>'2417166' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='29770' and id > 2417166 and id<>'2417166' order by id asc limit 5