题目内容
关于鼓膜正确的是( )
2021-10-17
A.使传人耳内的声波频率明显改变 |
B.有较好的频率响应和较小的失真度
C.咽鼓管阻塞时,可使其内陷
D.是一个平面膜
试卷相关题目
SQL Error: select id,body,options from ***_enewstiku where sourceid='25946' and id < 2179934 and id<>'2179934' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='25946' and id > 2179934 and id<>'2179934' order by id asc limit 5