hegemony
发表于 2025-3-28 15:50:48
utine care, cleaning and maintenance of all astronomical optCommercially-made astronomical telescopes are better and less expensive than ever before, and their optical and mechanical performance can be superb. When a good-quality telescope fails to perform as well as it might, the reason is quite pr
Collected
发表于 2025-3-28 19:18:12
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DEI
发表于 2025-3-29 00:20:11
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accrete
发表于 2025-3-29 06:45:24
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异端邪说下
发表于 2025-3-29 09:19:47
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大暴雨
发表于 2025-3-29 15:12:45
about aged persons can be shown to play a role in these ethical blunders. Aged persons often become as dependent as children, yet we fail to meet their needs as we would those of children. If we imagine treating children as we sometimes treat aged persons, it quickly becomes clear that there are pro
VERT
发表于 2025-3-29 17:56:45
Volker Johanning attempt to portray our present knowledge of this diverse field in a comprehensive textbook is therefore a formidable and daunting undertaking. However, many colleagues in different disciplines and from different countries convinced us of the need for such a work and, greatly encouraged by their int
激励
发表于 2025-3-29 23:03:02
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