合成糖原时，葡萄糖基的直接供体是

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SQL Error: select id,body,options from ***_enewstiku where sourceid='29764' and id < 2416965 and id<>'2416965' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='29764' and id > 2416965 and id<>'2416965' order by id asc limit 5