实物直观一般比模象直观的教学效果好。 （ ）

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='32286' and id < 2569527 and id<>'2569527' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='32286' and id > 2569527 and id<>'2569527' order by id asc limit 5