7. 下列何者可使鐵磁材料被去磁? (A)在某種之溫度之範圍 (B)溫度不會磁性 (C)超過某一溫度 (D)低於某一溫度

48. One aircraft that certificated as transport category by CAA or by civil aviation authority of the State of Design and prohibited for acrobatic operation is categorized as: (A)Commuter Category Aircraft (B)Transport Category Aircraft (C)Normal Category Aircraft (D)Utility Category Aircraft