A 减慢心率 B
增加衰竭心脏的耗氧量 C
增加衰竭心脏的心排血量 D
缩短收缩期,相对延长舒张期 E
抑制心肌细胞膜上的Na<img border="0" alt="" src="https://img.weimei168.com/uploads/upimg/20230804/14485543_0.gif">-K<img border="0" alt="" src="https://img.weimei168.com/uploads/upimg/20230804/14485543_0_1.gif">-ATP酶