成年人窦性心动过速通常是指心率超过()。
A.160次/分
B.100次/分
C.50次/分
D.60次/分
E.(220-年龄)次/分
参考答案:B
Thanks to my teacher's valuable help, otherwise I ________ my college entrance exam.
A.can't pass
B.hadn't passed
C.would not have passed
D.have not passed
对口人工呼吸要求做到()
A.先连续吹气3~4次,而后频率16次/分,潮气量800ml
B.先连续吹气3~4次,而后频率16次/分,潮气量600ml
C.先连续吹气3~4次,而后频率12次/分,潮气量800ml
D.先连续吹气3~4次,而后频率12次/分,潮气量600ml
E.心率与呼吸频率之比为4~5:1,潮气量600ml