题目内容
羊水内出现肺表面活性物质的时间是
2021-11-02
A.24~26周
B.28周
C.32周
D.35周
E.38周
试卷相关题目
SQL Error: select id,body,options from ***_enewstiku where sourceid='26911' and id < 2235470 and id<>'2235470' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='26911' and id > 2235470 and id<>'2235470' order by id asc limit 5