若两个传输参数都为的二端口级联，则级联后复合二端口传输参数矩阵为（）

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='32678' and id < 2599510 and id<>'2599510' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='32678' and id > 2599510 and id<>'2599510' order by id asc limit 5