第1个回答 2016-04-20
On April 12, 1961, the Soviet Union successfully launched its first manned spacecraft Vostok, Yuri Gagarin successfully completed the epoch-making space missions, in order to achieve the dream of human space travel, and ushered in a new era of manned space flight in the world, opened a human into space prelude. Since they have launched the "rise", a Soyuz spacecraft; at the same time, the United States in February 1962, launched the mercury spacecraft, after launching the Gemini spacecraft and the Apollo lunar landing manned spacecraft.本回答被提问者和网友采纳