患者,男性,54岁,劳累后感心悸。查脉搏,每隔两个正常搏动后出现1次过早的搏动。判断此脉律为( )。
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
免费的网站请分享给朋友吧