问题
单项选择题
女性，23岁。发作性头痛、呕吐4年。每月发作1～2次，均于月经前发作。神经系统无阳性体征发现。下列发病机制中哪项对本患者起主导作用（）
A.内分泌障碍
B.5-HT学说
C.遗传学说
D.变态反应性因素
E.癫痫样放电
答案
参考答案：A
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女性，23岁。发作性头痛、呕吐4年。每月发作1～2次，均于月经前发作。神经系统无阳性体征发现。下列发病机制中哪项对本患者起主导作用（）
A.内分泌障碍
B.5-HT学说
C.遗传学说
D.变态反应性因素
E.癫痫样放电
参考答案：A
| 根据句子意思，从方框中选用恰当的词或短语填空。 | |
2. Feng Xiaogang is one of the most popular ______ in China. 3. The teacher said that he ______ the progress we had made during the past three years. 4. It's necessary for the students ______ English aloud in the morning. 5. Mr. Zhang devoted all his life to ______. 6. I usually go to school by bike, but ______ I walk to school. 7. You should go to the cinema ______ staying at home in your free time. 8. The question is too difficult, so ______ people can answer it. |