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(2023·模拟)
听下面一段独白,从所听到的内容中获取必要的信息,填入空格中。
Much happened in the months after America go to the moon. New space flight centers were built.
for launch rockets and spacecraft were agreed on. And a new spaceflight program—Project Gemini—was begun. Flights in the two-man Gemini spacecraft tested the men, and methods to be used in the Apollo program to the moon. Gemini let astronauts learn about radiation(辐射) and the effects of being weightless during long flights. Astronauts learned how to and to join with other spacecraft.