妈妈给我买了一本名叫《世界军事》的杂志。我翻开杂志,看到一篇题为《F117隐身战斗机“表演”空难》的文章,我怀着好奇心读完了这篇文章。文章中写的是1997年9月14日,一架F117隐身战斗机做完飞行表演后,机翼突然折断,飞机坠毁,幸亏飞行员及时弹出跳伞……事后,美国联邦调查局介入调查,经过专家检测得出结论:飞机坠毁的原因是有3个螺丝没有拧紧。这个 Mom bought me a magazine called “World Military.” I opened the magazine and saw an article titled “F117 Stealth Fighter” performing a crash. I read this article with curiosity. Written in the article is September 14, 1997, an F117 stealth fighter finishes air show, the wing suddenly broken, the plane crashed, thanks to the pilot pop-up parachute in time ... ... Afterwards, the FBI involved in the investigation, after expert testing Concluded: The reason for the crash was that 3 screws were not tightened. This one