下列有关窝沟封闭较之银汞合金充填的优点，说法错误的是

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='29914' and id < 2425788 and id<>'2425788' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='29914' and id > 2425788 and id<>'2425788' order by id asc limit 5