张老师 - 课件 https://www.cshxw.com/forum-39-1.html Latest 20 threads of 课件 Copyright(C) 张老师 Discuz! Board by Comsenz Inc. Sun, 26 Apr 2026 14:30:40 +0000 60 https://www.cshxw.com/static/image/common/logo_88_31.gif 张老师 https://www.cshxw.com/ 2024中考化学考前指导 https://www.cshxw.com/thread-331-1-1.html 课件 admin Tue, 16 May 2023 08:35:23 +0000 原子的构成 https://www.cshxw.com/thread-320-1-1.html 课件 admin Wed, 10 May 2023 08:45:02 +0000 原子的构成 https://www.cshxw.com/thread-319-1-1.html 课件 admin Wed, 10 May 2023 08:41:46 +0000 分子和原子 https://www.cshxw.com/thread-318-1-1.html 课件 admin Wed, 10 May 2023 08:40:11 +0000 第一次月考 https://www.cshxw.com/thread-317-1-1.html 课件 admin Wed, 10 May 2023 08:38:44 +0000 氧气的化学性质1 https://www.cshxw.com/thread-316-1-1.html 课件 admin Wed, 10 May 2023 08:08:09 +0000 制取氧气2.2-2 https://www.cshxw.com/thread-315-1-1.html 课件 admin Wed, 10 May 2023 08:04:28 +0000 2.2 制取氧气 https://www.cshxw.com/thread-314-1-1.html 课件 admin Wed, 10 May 2023 07:57:30 +0000 2.1空气 https://www.cshxw.com/thread-313-1-1.html 课件 admin Wed, 10 May 2023 07:54:23 +0000 走进化学实验题（2） https://www.cshxw.com/thread-312-1-1.html 课件 admin Wed, 10 May 2023 07:46:45 +0000 走进化学实验室（1） https://www.cshxw.com/thread-311-1-1.html 课件 admin Wed, 10 May 2023 07:45:04 +0000 物质的变化和性质 https://www.cshxw.com/thread-310-1-1.html 课件 admin Wed, 10 May 2023 07:39:17 +0000