【多选题】关于心房肥大的诊断标准叙述,确的是 :
A.
P 波高尖,振幅≥0.25mV,Ⅱ、Ⅲ、aVF导联明显。常见于肺心病,故称为“肺性P波”
B.
V1 导联P波直立时,振幅≥0.15mV见于右房肥大
C.
Ⅰ、Ⅱ、aVR、aVL导联P波增宽≥0.12s,常见二尖瓣狭窄,又称“二尖瓣型P波”
【单选题】9-1P波高尖、振幅>0.25mV,时间<0.11s,常见于
【单选题】若 a 和 b 均 是 整 型 变 量并 已正 确 赋 值 , 正确 的 switch 语 句 是()
A.
switch(a+b); { ...... }
【简答题】There are more and more people in China who learn English. _________ ___________ __________ peopl1. There are more and more people in China who learn English. _________ ___________ __________ people _...
【简答题】细胞处于能够从周围环境中摄取DNA分子(基因片段),并且不易被细胞内的限制性核酸内切酶分解时所处的一种特殊生理状态时被称为 细胞。
【单选题】P波高尖、振幅>0.25mV,时间<0.11s,常见于
【单选题】In many English homes, people eat four meals a day: breakfast, lunch, tea and dinner. People have breakfast at anytime from seven to nine in the morning. They eat porridge, eggs or bread. English peop...