题目内容
波形有畸变,是因为含有高次谐波造成的。()
试卷相关题目
SQL Error: select id,body,options from ***_enewstiku where sourceid='32638' and id < 2595318 and id<>'2595318' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='32638' and id > 2595318 and id<>'2595318' order by id asc limit 5