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【单选题】
男性，75岁，心绞痛发作持续4小时。含硝酸甘油无效。心电图示Ⅱ、Ⅲ、aVF导联呈弓背样抬高6mm，V 1 ~V 3 导联ST段水平样压低4mm，偶发室性期前收缩1次，诊断为急性心肌梗死。 此时治疗应首先（）A.
静脉滴注普罗帕酮
B.
静脉滴注肾上腺素
C.
应用升压药
D.
临时心脏起搏
E.
静脉滴注阿托品
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反馈参考答案：
举一反三
【单选题】What is a global command?（）
A.
a command that is set once and affects the entire router
B.
a command that is implemented in all foreign and domestic IOS versions
C.
a command that is universal in application and supports all protocols
D.
a command that is available in every release of IOS, regardless of the version or deployment status
E.
a command that can be entered in any configuration mode
【单选题】What is the position in the Ranking List for Shanghai Disneyland Park in the world?
A.
Fifth
B.
Fourth
C.
Sixth
D.
Seventh
【单选题】What is the ranking of readers magazines in the circulation of comprehensive journals in the world?
A.
first
B.
second
C.
third
D.
fourth
【单选题】What is the circulation ranking of Readers Magazine in Asia?
A.
first
B.
second
C.
third
D.
fourth
【单选题】What is the ranking of the USA's total population in the world?
A.
1st largest.
B.
2nd largest.
C.
3rd largest.
D.
4th largest.
【单选题】What is the circulation ranking of Readers Magazines in China?
A.
first
B.
second
C.
third
D.
fourth
【单选题】What is the ranking order of the top 4 tourism destinations in the world?
A.
China,France,United States and Spain
B.
France,United States and Spain,China
C.
China,France,Spain and United States
D.
United States,France,Spain and China
【简答题】What is the percentile ranking of 50?
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