题目内容
曲线 
在点 
处的切线斜率为（ ）
试卷相关题目
SQL Error: select id,body,options from ***_enewstiku_ where sourceid='14439' and id < 1194147 and id<>'1194147' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='14439' and id > 1194147 and id<>'1194147' order by id asc limit 5
