• 2022-07-25
    Astronauts were ordered to abandon the International Space Station because _______.
  • they faced a threat from space junk

    内容

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      Why would astronauts cover each bite of food in space() A: Because small pieces of food would fall down to the floor. B: Because weightless pieces of food might make trouble when they travel around. C: Because they haven’ t enough food for longer trips. D: Because astronauts don’ t want to waste foo

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      Astronauts now ____________: Pilots, the astronauts who actually fly the space shuttle, account for one-third of the astronaut

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      学起: Space travel is dangerous and the astronauts in space have to ______ many discomforts (不适) in their rockets.

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      Astronauts are connected to the space shuttle so that they cannot float off into space.

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      Training astronauts _________ not an easy thing. A: are B: is C: were D: be