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问题 单项选择题

心电图检查中确立室性心动过速诊断的最重要依据是（）

A.三个或三个以上的室性期前收缩连续出现

B.QRS波形态畸形，时限大于0.12秒

C.有继发性ST－T改变，ST－T波方向常与QRS波群主波方向相反

D.P波与QRS波群无固定关系，形成房室分离

E.常可见到心室夺获或室性融合波

答案

参考答案：E

阅读理解

阅读理解，根据所给首字母，按原文填空。

      I love to go on trips. Trips are fun. I want to go to Beijing. It is far from my home. Beijing is a big city. It's

the capital city of our country, China. It has big shops, restaurants and hotels. Tian'anmen Square is in Beijing.

It's very famous. The Palace Museum is in Beijing, too. It is very old and beautiful. Beijing is great. China is

great.

1. T____________ are very interesting.

2. My home is f____________ from Beijing.

3. The c____________ city of China is Beijing.

4. Beijing has big s____________, r____________ and h____________.

5. T____________ S____________ is in Beijing.

6. The P____________ M____________ is o____________ and b____________.

7. C____________ is great, B____________ is great, t____________.
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单项选择题

脑震荡最有诊断价值的表现是（）

A．伤后昏迷时间未超过30分钟 

B．头痛、头晕和呕吐等症状剧烈 

C．近事遗忘 

D．伤后有短时生命体征变化 

E．CT检查未见异常
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