无能的人
发表于 2025-3-26 22:49:58
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PURG
发表于 2025-3-27 02:21:29
Euclidean Geometry, the Parallel Postulate, and the Work of Lambert and Legendre,e third of Saccheri’s hypotheses. Then came Adrien-Marie Legendre, who also made several unsuccessful attempts to refute the third hypothesis, one of which is considered in detail..Extract: Lambert on the consequences of a non-Euclidean parallel postulate.
G-spot
发表于 2025-3-27 06:02:52
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摆动
发表于 2025-3-27 12:50:39
Akash Sontake,Naveen Jain,A. R. Singh, economic return, resource usage, food safety, and fitting farming in more and more urbanized areas, there also is a fundamental question on how to fulfill the concerns of society about animal welfare and provide the best care for every individual. Pigs are very intelligent, kind, and curious anima
召集
发表于 2025-3-27 17:13:35
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