国际头痛协会紧张性头痛诊断标准是什么?
参考答案：
国际头痛协会将TH分为四类，有严格的诊断标准：①发作性TH：要求发作至少10次以上，头痛时间<180天/年，<15天/月；②有颅周肌肉疾病的发作性TH：有颅周骨和肌肉触痛和EMG活动增加；③无颅周肌肉疾病的发作性TH：无肌肉触痛和EMG改变；④慢性TH：头痛时间≥180天/年，≥15天/月。
| 阅读理解。 | ||||
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| 1. What's the subject of this e-mail? | ||||
| A. Books on sale. B. Invitation to a party. C. Going shopping | ||||
| 2. Li Fang will buy some books _____. | ||||
| A. after the English exam B. before the English exam C. after the physics exam | ||||
| 3. What's Wang Le's favorite subject? | ||||
| A. History. B. Computer. C. Science | ||||
| 4. Will Wang Le go to the bookstore with Li Fang? | ||||
| A. We don't know. B. Yes, he likes it. C. No, I don't think so. | ||||
| 5. From the passage we know _____. | ||||
| A. they are friends B. they are strangers C. they are mother and son |