WBS中最低层的可交付成果为（）。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='27072' and id < 2244067 and id<>'2244067' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='27072' and id > 2244067 and id<>'2244067' order by id asc limit 5