１９００年以来的重大发明，改变了我们的生活。有些是以前的发明，但在２０世纪得到了普及。空调　是美国人Ｗ　卡里尔１９１１年发明的。汽车本世纪开始时街道上已有汽车，但系列汽车产品是２０世纪创造的，以１９０１年发明奔驰汽车为最重要。飞机１９０３年，人类第一... Major inventions since 1900 have changed our lives. Some were previous inventions but gained popularity in the 20th century. Air conditioning was invented by American W Carril in 1911. Cars Cars were already on the streets at the beginning of this century, but the series of automotive products was created in the 20th century. The invention of the Mercedes in 1901 was the most important. Airplane 1903, human first ...