As the airplane encountered unexpected _______, passengers felt a mixture of anxiety and discomfort, but the experienced pilot skillfully navigated through the rough air, ensuring their safety.
Aalternative
Bemission
Cturbulence正確答案
Dmultiplication
答案與詳解
C
正確答案
turbulence 指亂流，與題幹 rough air（顛簸氣流）形成同義線索。
逐選項解析
Aalternative✕ 錯誤
alternative 意為「替代方案、選擇」，與飛行顛簸情境無關，搭配 unexpected 雖文法通，但無法對應後句 rough air。
