(单选题)

To earn a Space Exploration badge, a trainee needs to ______.

A.fly to space

B.get an Aviation badge first

C.study the principles of flight

D.build and fire model rockets

参考答案：D

参考解析：

细节理解题。根据第三段第二句“At Space Camp, trainees can earn their Space Exploration badge as they build and fire model rockets, learn about space tasks and try simulated (模拟) flying to space with the crew from all over the world.”可知，要想获得太空探险徽章，需要建造和发射火箭模型，学习空间任务，尝试与飞行员模拟太空飞行等。故选D。

知识点：阅读理解四选一英语专业基础知识阅读理解教师招聘-小学英语