A.P波尖而高聳 B.P波振幅≥0.25mV C.P波高尖以Ⅱ、Ⅲ及aVF最為突出 D.P波寬度<0.11s E.高尖的P波,稱為“二尖瓣P(guān)波”
A.0.12s B.0.20s C.0.32s D.0.40s E.0.44s
A.1/2 B.1/4 C.1/6 D.1/8 E.1/10