题目内容
支气管哮喘发作时的主要特征是
2022-01-19
A.慢性咳嗽，咯痰，喘息
B.发作性伴有哮鸣音的呼气性呼吸困难
C.发作性伴有哮鸣音的吸气性呼吸 困难
D.混合性呼吸困难
E.非发作性呼吸困难
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