摘要
CEMENT, telephones, camera film, steam engines, and electric motors. A slew of innovative new inventions have been displayed at World Expos since the fair’s inception in 1851. It has always been a showcase for the envelope-pushers in science and technology.
CEMENT, telephones, camera film, steam engines, and electric motors. A slew of innovative new inventions have been displayed at World Expos since the fair＇s inception in 1851. It has always been a showcase for the envelope-pushers in science and technology. This year＇s Shanghai World Expo, which opens on May 1,2010, will have plenty of the next generation of gadgets to impress and amaze.
