举一反三
- The___worn by astronauts is designed to keep them alive in outer space. A: gear B: hear C: tear D: ear
- The ________ worn by astronauts is designed to keep them alive in outer space. A: debris B: gear C: clif D: hook
- Astronauts are connected to the space shuttle so that they cannot float off into space.
- As its name suggests, a space elevator is designed to raise things into space.
- -How amazing it is that astronauts are exploring outer space! A: t’s a challenge, I guess, man against nature. B: of C: for D: by E: About
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Generally speaking, there are four categories of space. They are intimate space, personal space, _______ space, and public space.
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17.A) They tried to make best use of the latest technology. A: A) They tried to make best use of the latest technology. B: B) They tried to meet astronauts’ specific requirements. C: C) They developed objects for astronauts to use in outer space. D: D) They accurately calculated the speed of the orbiting shuttles.
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20171201CET-4 Listening comprehensionSection C 17 A: They accurately calculated the speed of the orbiting shuttles. B: They developed objects for astronauts to use in outer space. C: They tried to meet astronauts' specific requirements. D: They tried to make best use of the latest technology.They tried to make best use of the latest technology.
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Which of the following statements is NOT true（） A: The captain believed that the UFO was visiting craft from outer space. B: The camera crew believed that the UFO was visiting craft from outer space. C: The air traffic controller believed that the UFO was visiting craft from outer space. D: Many people believed that the UFO was visiting craft from outer space.
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The invention of various _____ promotes the exploration of outer space.