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>必修第二册课件∣8.1.1冶金
必修第二册课件∣8.1.1冶金
2026-05-11 06:47:12
必修第二册课件∣8.1.1冶金
必修第二册的课件分享,可以识别二维码获取所有课件。
推送目录【蓝色已推送】
5.1硫及其化合物
5.2氮及其化合物
5.3无机非金属材料
5单元复习课
6.1.1化学反应与热能
6.1.2化学反应与电能
6.2.1化学反应速率的计算
6.2.2化学反应速率的影响因素
6.2.3化学反应的限度与化学反应条件的控制
6单元复习课
7.1.1有机化合物中碳原子的成键特点
7.1.2烷烃的性质
7.2.1乙烯
7.2.2有机高分子材料
7.3.1乙醇
7.3.2乙酸
7.3.3官能团与有机化合物的分类
7.4基本营养物质
8.1.1冶金
8.1.2海洋资源
8.1.3煤、石油和天然气的综合利用
8.2+8.3化学品的合理使用与环境保护
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CONNECT:[ UseTime:0.000411s ] mysql:host=127.0.0.1;port=3306;dbname=a_sjds;charset=utf8mb4
SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000576s ]
SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000304s ]
SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000308s ]
SHOW FULL COLUMNS FROM `set` [ RunTime:0.000607s ]
SELECT * FROM `set` [ RunTime:0.000981s ]
SHOW FULL COLUMNS FROM `article` [ RunTime:0.000594s ]
SELECT * FROM `article` WHERE `id` = 498270 LIMIT 1 [ RunTime:0.016664s ]
UPDATE `article` SET `lasttime` = 1778712023 WHERE `id` = 498270 [ RunTime:0.009485s ]
SELECT * FROM `fenlei` WHERE `id` = 66 LIMIT 1 [ RunTime:0.001794s ]
SELECT * FROM `article` WHERE `id` < 498270 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.006850s ]
SELECT * FROM `article` WHERE `id` > 498270 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.006819s ]
SELECT * FROM `article` WHERE `id` < 498270 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.010659s ]
SELECT * FROM `article` WHERE `id` < 498270 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.003621s ]
SELECT * FROM `article` WHERE `id` < 498270 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.009327s ]
0.152847s