电子商务交易活动的达成必然需要)在时空上的协作，缺一不可。 

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='28615' and id < 2336511 and id<>'2336511' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='28615' and id > 2336511 and id<>'2336511' order by id asc limit 5