夹闭冠状动脉后首先出现的ECG改变是（）。 A.T波倒置 B.S-T段下降 C.S-_爱下问搜题

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问题单项选择题

夹闭冠状动脉后首先出现的ECG改变是（）。

A.T波倒置

B.S-T段下降

C.S-T段渐抬高

D.T波与S-T段融合

E.R波变为QS（Q）波

答案

参考答案：A

阅读理解

任务型阅读。
仔细阅读下列的一封信，然后填写信息卡。
February 15th
Dear Julie,
     Gong He Xin Xi (恭贺新禧)! I am on holiday in Beijing. I can see the Chinese New Year celebrations (庆祝) here.
     The Dragon Dance is the most exciting one. It is the first time that I see it and I am very happy. I also
eat traditional Chinese food. At night, there are fireworks in the street.
     What are you doing for Chinese New Year in Hong Kong?
                                                                                                                                       Lots of love,
                                                                                                                                       Wendy
信息卡

Where is Julie now?	1
What can Wendy see?	2
What does Wendy first see?	3
What does Wendy eat?	4
There are 5 at night in the street.

填空题

为提高轨道结构的承载能力，应积极发展无缝线路、新型（）及弹性扣件。