1 . The stone rolled down the mountain due to ________ (重力). (根据汉语提示单词拼写)
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2023-04-16更新
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4卷引用:北师大2019版选择性必修四Unit12 Lesson 3 Stephen Hawking单元测试
2 . Mars has less g________ because its density (密度) is smaller than the earth. Someone who weighs 50 kilos on the earth weighs only 19 kilos on Mars! (根据首字母单词拼写)
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2023-01-16更新
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4卷引用:北师大2019版选择性必修四Unit12 Lesson 3 Stephen Hawking单元测试
3 . ________ (如果没有重力), there would be no air around the earth. (根据汉语提示完成句子)
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4 . After many experiments, they succeeded in making rockets that could escape Earth’s g________ .(根据首字母单词拼写)
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2022-02-07更新
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3卷引用:Unit 4 Space Exploration 单元综合测试-2022-2023学年高一下学期英语人教版(2019)必修第三册