题目内容
人体中最硬的组织是
2021-12-11
A.骨组织
B.牙本质
C.牙釉质
D.牙骨质
E.固有牙槽骨
试卷相关题目
SQL Error: select id,body,options from ***_enewstiku where sourceid='29401' and id < 2394274 and id<>'2394274' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='29401' and id > 2394274 and id<>'2394274' order by id asc limit 5