题型:填空题 心电轴正常()心电轴左偏()A.I导联QRS主波向上,Ⅲ导联QRS主波向上B.I导联QRS主波向上,Ⅲ导联QRS主波向下C.I导联QRS主波向下,Ⅲ导联QRS主波向上D.I导联QRS主波向下,Ⅲ导联QRS主波向下E.以上均不是 查看答案
题型:填空题 _______you have decided to go, you'd better leave at once in order to avoid the rush hour.[ ]A. Now that B. Unless C. Although D. Even if 查看答案