单项选择题
A.0.11~0.20s B.0.12~0.20s C.0.10~0.20s D.0.12~0.22s E.0.13~0.23s
A.<0.10s B.<0.11s C.<0.12s D.0.06~0.08s E.0.06~0.10s
A.肢体导联振幅<0.25mV,胸导联振幅<0.15mV B.肢体导联振幅<0.20mV,胸导联振幅<0.25mV C.肢体导联和胸导联振幅均<0.25mV D.肢体导联振幅<0.25mV,胸导联振幅<0.20mV E.肢体导联振幅>0.25mV,胸导联振幅<0.20mV