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男，38岁。因间断心悸1天就诊。查体：心率72次/分，偶可闻及期前收缩。心电图示：提前出现的P波，形态与窦性P波略有不同，P～R间期0.13秒，QRS波群形态正常，代偿间期不完全。最恰当的处理是（）

A. 静脉注射阿托品
B. 口服美托洛尔
C. 口服普罗帕酮
D. 寻找和去除病因
E. 口服胺碘酮
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Questions 5 to 8 are based on the conversation you have just heard. A、A) She had an argument with her friend over dolls. B、B) She found her friend was going to sleep on the floor. C、C) She was afraid to sleep in her friend’s dirty house. D、D) She became sleepy and cried to go back home.
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小叶榕的别名是
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