题目内容

a consultant

A.someone who talks at a public event
B.someone who helps people to improve at a sport, skill or school subject
C.someone who advises people on a particular subject
D.someone who writes books or articles

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an author

A.someone who talks at a public event
B.someone who helps people to improve at a sport, skill or school subject
C.someone who advises people on a particular subject
D.someone who writes books or articles

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阵发性室上性心动过速频率范围为:

A. <180次/分
B. 160~250次/分
C. 140~200次/分
D. 200~250次/分
E. >180次/分

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室性期前收缩的心电图是:

A. 提前出现的异位P′波及宽大畸形之QRS波
B. 提前出现的QRS波伴有逆行P波
C. 提前出现的QRS波,宽大畸形
D. 代偿间歇多不完全
E. 以上都不是

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二度Ⅱ型房室传导阻滞的心电图特点是:

A. PR间期延长>0.20秒
B. PR间期恒定,部分P波后无QRS波群
C. PR间期缩短<0.12秒
D. PR间期逐渐延长,直到一个P波后脱漏QRS波群
E. P波与QRS波无固定关系,各保持自身的节律

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a consultant

A.someone who talks at a public event B.someone who helps people to improve at a sport, skill or school subject C.someone who advises people on a particular subject D.someone who writes books or articles

an author

阵发性室上性心动过速频率范围为:

室性期前收缩的心电图是:

二度Ⅱ型房室传导阻滞的心电图特点是:

A.someone who talks at a public event
B.someone who helps people to improve at a sport, skill or school subject
C.someone who advises people on a particular subject
D.someone who writes books or articles