Great Scientists rocketsatellitemissile Qian Xuesen1. He is a Chinese physicist.2. He is one of the pioneers of China’s space science.3. He graduated from MIT (Massachusetts Institute of Technology) and CIT (California Institute of Technology).4. In 1955, he gave up the good condition in the USA a...

时间:2024-11-22 12:25栏目:幼儿/小学教育