12.有關支氣管擴張症的診斷方法和原因的組合，下列何者錯誤？ (A)Serum protein electrophoresis / alpha1-antitrypsin deficiency (B)Immunoglobulin level / cystic fibrosis (C)Aspergillus precipitins / allergic bronchopulmonary aspergillosis (D)Electron microscopic examination of sperm / primary ciliary dyskinesia