helper-T-cells 发表于 2025-4-1 01:52:27
http://reply.papertrans.cn/95/9419/941837/941837_61.png洞察力 发表于 2025-4-1 08:08:10
http://reply.papertrans.cn/95/9419/941837/941837_62.pngN防腐剂 发表于 2025-4-1 13:15:06
As the World Turns,ong the horizontal air track in Fig. 2.1 is in equilibrium. Equilibrium is not concerned with whether the body is in motion, but whether the motion is changing. How can we change the state of motion of a body? What are the conditions for equilibrium? Let’s see.intuition 发表于 2025-4-1 14:26:00
The Starry Messenger,now about a star—mass, size, chemical composition, brightness, temperature, distribution of matter (density), color, age, and energy production are some that come to mind. These characteristics are interrelated and all must be extracted from the light we get from the star.恩惠 发表于 2025-4-1 19:21:35
http://reply.papertrans.cn/95/9419/941837/941837_65.pngexpound 发表于 2025-4-2 02:16:10
9楼Delirium 发表于 2025-4-2 02:56:46
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9楼neurologist 发表于 2025-4-2 11:11:35
10楼令人作呕 发表于 2025-4-2 15:55:51
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