Which of the following can be detected in healthy population? A: Sibilant wheezes B: Coarse crackles C: Crepitation D: Sonorous wheezes

In which of the following locations do coarse crackles mainly occur? A: Bronchiole B: Main bronchus C: Bronchia D: Alveoli E: Terminal bronchioles

支氣管擴張症是指支氣管不正常的擴張，導致呼吸道不可回復性的損壞。臨床上常出現哪些症狀? (複選) A: 咳嗽有痰 B: 呼吸困難 C: 反覆性的感染 D: 呼吸有爆裂音(crackles)或喘鳴音(wheeze)