Overthrow
发表于 2025-3-28 15:18:24
Wei Zhang “game.” You will find almost as many definitions of “game” as there are authors writing about it. There are some common elements though, and this chapter uses those to define what we mean by “game.” In order to make effective use of games in the classroom we need to be able to choose appropriate ga
Atrium
发表于 2025-3-28 22:20:50
Linda Grove “game.” You will find almost as many definitions of “game” as there are authors writing about it. There are some common elements though, and this chapter uses those to define what we mean by “game.” In order to make effective use of games in the classroom we need to be able to choose appropriate ga
裙带关系
发表于 2025-3-28 23:56:12
solution and light-gathering power. The gain in brightness is always more profound than the gain in resolution. If you step away from an 8-inch Dob and place your eye at the focus of a 16-inch instrument, the first thing you’ll notice is how much more bright (4-fold) the objects have become. Only af
可商量
发表于 2025-3-29 05:18:02
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CAMP
发表于 2025-3-29 09:50:28
Linda Groveimprove in the future.Contains many practical and useful hinIn the 1960‘s, American amateur astronomer, John Dobson, designed a revolutionary kind of astronomical telescope featuring a lightweight large-aperture reflecting system on a simple mounting, using the then-revolutionary material called tef
高歌
发表于 2025-3-29 12:51:30
Kensuke Hiraisolution and light-gathering power. The gain in brightness is always more profound than the gain in resolution. If you step away from an 8-inch Dob and place your eye at the focus of a 16-inch instrument, the first thing you’ll notice is how much more bright (4-fold) the objects have become. Only af
确认
发表于 2025-3-29 15:45:20
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APO
发表于 2025-3-29 22:18:42
Masayuki Tanimototems developed in the last 10 years.Covers how to understand.Catadioptric telescopes (CATs) such as the Schmidt Cassegrains remain popular among amateur astronomers for their ability to reveal thousands of beautiful deep-space wonders. Additionally, their computer-assisted capabilities allow them to
Antagonism
发表于 2025-3-29 23:53:55
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滔滔不绝的人
发表于 2025-3-30 04:43:14
Market Approaches to Dealing with Cotton Adulteration in Early Twentieth-Century Chinanternational trade through a case study of the trade in cotton fiber in early twentieth-century China. Dishonest practices, such as adulteration, emerged in raw cotton exports from Hubei Province. At the beginning of the twentieth century as demand for cotton increased in response to the growth of t