心电图上反映心室绝对不应期的是()
A.P-R间期
B.R-T间期
C.Q-T间期
D.Q-R间期
E.T波
参考答案:C
You have never been to the USA before,have you ?
______ . How I wish I could go there some day
A.Yes,I have
B.No, I haven’t
C.No,I have
D.Yes,I haven’t
观察颅脑损伤患者病情时,为避免患者躁动影响准确性,宜首先观察
A.瞳孔
B.呼吸
C.脉搏
D.血压
E.神志