3 Questions
COPD is characterized by which of the following?
长期呼吸道症状和气流受限
What are the main symptoms of COPD?
呼吸急促和咳嗽（可能有可能无痰）
Which statement about COPD is true?
COPD是不可治愈的，但是可以预防和治疗
Test your knowledge on COPD by identifying its characteristics, main symptoms, and true statements about the condition.
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