helper-T-cells
发表于 2025-4-1 01:52:27
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洞察力
发表于 2025-4-1 08:08:10
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N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
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expound
发表于 2025-4-2 02:16:10
9楼
Delirium
发表于 2025-4-2 02:56:46
9楼
宽容
发表于 2025-4-2 07:34:08
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
10楼