题目内容
从韧皮部中获取筛管汁液的有效方法是( )。
试卷相关题目
SQL Error: select id,body,options from ***_enewstiku where sourceid='25861' and id < 2171241 and id<>'2171241' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='25861' and id > 2171241 and id<>'2171241' order by id asc limit 5