谁最先发现了重力？
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哈桑·伊本·海赛姆
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谁以视觉科学家而闻名？
Correct answer(s):
- 哈桑·伊本·海赛姆
Practice related MCQ quizzes and improve step by step.
谁最先发现了重力？
谁以视觉科学家而闻名？