论文部分内容阅读
同学们可能都知道,2000年和2001年,我国“神舟”号宇宙飞船进行了两次试验飞行,都取得了成功。随后,我
The students may all know that in 2000 and 2001, China’s “Shenzhou” spacecraft conducted two test flights and all achieved success. Then I