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Witryna正确答案: A 答题解析： 选A。 对应原文Earth contains less of some volatile elements, such as nitrogen, argon, hydrogen, and helium. These elements were lost when the envelope of gases, or primary atmosphere, that surrounded early Earth, was stripped away by the solar wind or by meteorite impacts, or both. WitrynaAncient civilizations observed astronomical bodies, often the Sun and Moon, to determine time. According to the historian Eric Bruton, Stonehenge is likely to have been the Stone Age equivalent of an astronomical observatory, used for seasonal and annual events such as equinoxes or solstices. As megalithic civilizations left no recorded history, … leasing homes in lilburn

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WitrynaScribd is the world's largest social reading and publishing site. Witryna太阳是如何起源的？. 我想这个问题的答案没有人比ETS更想知道这两周的家庭版托福中多次考察此类话题如The birth of Solar System、How the Solar System Was Formed等等. 哪怕没有直接讨论此话题在Earth’s Early History、The Origin of Earth’s Atmosphere. 更多TOEFL阅读原题收录在《光年 ... WitrynaThe Sun is the hub of a huge rotating system consisting of nine planets, their satellites, and numerous small bodies, including asteroids, comets, and meteoroids. An estimated 99.85 percent of the mass of our solar system is contained within the Sun, while the planets collectively make up most of the remaining 0.15 percent. leasing home with bad credit