肺气肿时,其主要症状是A.突然出现呼吸困难B.夜间阵发性呼吸困难C.逐渐加重的呼吸困难,以活动后为著D.发绀E.心悸

作者: rantiku 人气: - 评论: 0
问题 肺气肿时,其主要症状是 A.突然出现呼吸困难 B.夜间阵发性呼吸困难 C.逐渐加重的呼吸困难,以活动后为著 D.发绀 E.心悸
选项
答案 C
解析

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