46. What is the scope of respiratory diseases mentioned in the passage?
(A) A broad spectrum including infections, chronic diseases, and conditions leading to structural changes in
airway and lung tissues
(B) Primarily genetic conditions affecting the lungs
(C) Only infections like the common cold
(D) Diseases caused exclusively by environmental factors
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統計: A(219), B(6), C(1), D(2), E(0) #3223566
統計: A(219), B(6), C(1), D(2), E(0) #3223566