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【单选题】
你已施行胸外按压和有效的正压人工呼吸30秒 , 但检测心率仍为40次/min, 下一步措施你该做什么?A.
继续胸外按压30sEC并重新检测心率
B.
插入脐静脉导管，给肾上腺素，并考虑气管插管
C.
改换正压人工呼吸的不同装置(如气流充气式气囊改换为自动充气式气囊)
D.
因无效停止胸外按压
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反馈参考答案：
举一反三
【简答题】What is mentioned as a major characteristic of the one-room school system in the second para graph？
【单选题】One of the major keys to success is __________. 查看材料
A.
the ability to work with others
B.
encouraging group members
C.
lack of good leaders
D.
overcoming fears about being a leader
E.
bossing people around
F.
working out good strategies
【简答题】One of the major factors that are closely related to poverty and unemployment is lack of education
【判断题】There are no major differences between how one reads in one ’s mother tongue and how one reads in a foreign language.()
A.
正确
B.
错误
【简答题】在应付款系统的单据设计功能中,可以对以下__ _系统的单据进行编号设置。
【单选题】Some people maintain that watching violence on TV is one of the major causes of__________ behaviour and crime in society. [ ]
A.
childish
B.
artificial
C.
aggressive
D.
heroic
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