如需在PowerPoint演示文档的一张幻灯片 后增加一张新幻灯片，最优的操作方法是( )

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='29841' and id < 2421840 and id<>'2421840' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='29841' and id > 2421840 and id<>'2421840' order by id asc limit 5