合同
发表于 2025-3-26 21:28:46
http://reply.papertrans.cn/103/10275/1027492/1027492_31.png
职业拳击手
发表于 2025-3-27 02:40:52
http://reply.papertrans.cn/103/10275/1027492/1027492_32.png
CHECK
发表于 2025-3-27 06:16:51
Exzellenz und Elite im amerikanischen HochschulsystemPortrait eines Women
Vsd168
发表于 2025-3-27 09:34:03
http://reply.papertrans.cn/103/10275/1027492/1027492_34.png
ODIUM
发表于 2025-3-27 17:19:01
Biodegradation of Nitrophenol Compounds,the phenolate anion and pH reactivity (.-nitrophenol is colorless at pH 5.6 and the corresponding phenolate anion has a maximum yellow color at pH 7.6), nitrophenols are often used directly in titrations as indicators. Nitrophenols are also used in monitoring the enzyme activity, such as ß-galactosi