万有引力常量的单位是（ ）

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SQL Error: select id,body,options from ***_enewstiku where sourceid='27099' and id < 2247056 and id<>'2247056' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='27099' and id > 2247056 and id<>'2247056' order by id asc limit 5