【单选题】Passage Three You never see him, but they're with you every time you fly. They record where you are going, how fast you're traveling and whether everything on your airplane is functioning normally. Th...
A.
4. Why did the Federal Aviation Authority require the black boxes be painted orange or yellow? A) To distinguish them from the color of the plane.
【简答题】Passage One You never see him, but they're with you every time you fly. They record where you are going,how fast you're traveling and whether everything on your airplane is functioning normally. Their...