【判断题】在心室充盈期,其主要作用的是心室舒张引起心室内压下降对心房和大静脉的抽吸作用,次要作用是心房的收缩挤压。
【单选题】Her family strongly disapprove( )her marrying the young man.
【单选题】Her family strongly disapprove ( )her marrying the young man.
【单选题】心室内压力达最高值在:( ) A、 心房收缩期末 B、 等容收缩期末 C、 快速射血期 D、 等容舒张期 E、 心室充盈期末
【单选题】Her family strongly disapprove her marrying the young man.
【单选题】Her family strongly disapprove ______her marrying the young man.
【单选题】Her family strongly disapprove ___ her marrying the young man.
【单选题】在心脏泵血的快速充盈期内,心室内压( )