______ One of the key components of planning a moon landing was the selection and training of flight crews.
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举一反三
- One of the first flight training lessons taught to student pilots is how to perform a(n) _____ landing in a small airplane.
- One of the first flight training lessons is how to perform an_________ landing in a small airplane. A: emergence B: urge C: emergency D: emerge
- One of the first flight training lessons taught to student pilots is how to perform a(n) ______ landing in a small airplane. 向飞行学员传授的第一批飞行训练课程之一是如何驾驶小型飞机进行紧急迫降。
- What will be the astronauts' top priorities（） A: Entering the orbit and landing on the moon. B: Landing and walking on the moon surface. C: Exploration and researches into the moon composition. D: Exploration and construction of a moon base.
- The moon landing ______ the beginning of a new era.
内容
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Was it in 1969 ____, the American astronaut succeeded in landing on the moon?
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Was it in 1969 _____ the American astronaut succeeded _____ landing on the moon ?
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Each flight instructor has his/her own flight training procedures.
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This company is planning to develop and produce ____ cars and components in the country.
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Planning in advance is the key to 2) .