问题
单项选择题
女性，70岁，1周来晕厥两次，心电图示P波与QRS波群二者互不相关，P波频率为80次／分，QRS波群频率为45次／分，规整。诊断为（）。
A.第三度房室传导阻滞
B.室性心动过速
C.第二度房室传导阻滞
D.室性期前收缩
E.窦性心动过缓
答案
参考答案：A
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女性，70岁，1周来晕厥两次，心电图示P波与QRS波群二者互不相关，P波频率为80次／分，QRS波群频率为45次／分，规整。诊断为（）。
A.第三度房室传导阻滞
B.室性心动过速
C.第二度房室传导阻滞
D.室性期前收缩
E.窦性心动过缓
参考答案：A
| 选用正确的词填空。 | |
2. —Do you have some more paper? —No, I _____. 3. There _____ two footballs and a volleyball in the basket. 4. Let's _____ good friends. 5. _____ you spell your name, please? 6. _____ there a football game on TV today? 7. Sorry, I _____ answer the question. It's too difficult. 8. Card _____ like sports. She thinks it's boring. 9. _____ they need more school things? 10. I _____ a football fan. I like it very much. |