图9-16活动图中可以同时执行的活动是（）。 

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SQL Error: select id,body,options from ***_enewstiku where sourceid='30194' and id < 2442073 and id<>'2442073' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30194' and id > 2442073 and id<>'2442073' order by id asc limit 5