下列哪种物质是细胞代谢所需能量的主要储存形式：

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='21266' and id < 1847570 and id<>'1847570' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='21266' and id > 1847570 and id<>'1847570' order by id asc limit 5