题目内容
心室肌的有效不应期较长，一直持续到（）。
2021-10-12
A.收缩期开始
B.舒张中后期
C.舒张期开始后
D.收缩期中间
E.舒张期结朿
试卷相关题目
SQL Error: select id,body,options from ***_enewstiku where sourceid='25527' and id < 2149056 and id<>'2149056' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='25527' and id > 2149056 and id<>'2149056' order by id asc limit 5