Listening Quiz: Đào Tạo Lại Mẫu Hô Hấp cho Hen Suyễn – Medium Level

1. What is the conversation mainly about?
2. According to Jessica, how long should Mark breathe in through his nose at first?
3. How often should Mark practice the breathing exercise?
4. What can be inferred about breathing retraining from Jessica’s explanation?
5. Why does Jessica ask, ‘Have you heard of breathing retraining?’

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