既是重要的储能物质，又是直接的供能物质的是（      ）

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SQL Error: select id,body,options from ***_enewstiku where sourceid='25942' and id < 2179731 and id<>'2179731' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='25942' and id > 2179731 and id<>'2179731' order by id asc limit 5