PEF during the study period was significantly higher in Group C than that in Group D, and symptom score was significantly less in Group C than that in Group D.
治疗期间合用组最高呼气流速（PEF）显著高于单用组，而症状计分则少于单用组。
PEF during the study period was significantly higher in Group C than that in Group D, and symptom score was significantly less in Group C than that in Group D.
治疗期间合用组最高呼气流速（PEF）显著高于单用组，而症状计分则少于单用组。
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