任两台（ ）之间的数据传输路由不应超过4个交换机。

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='29475' and id < 2398407 and id<>'2398407' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='29475' and id > 2398407 and id<>'2398407' order by id asc limit 5