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深圳市2026年初中学业水平考试化学实验操作模拟考试视频指导

2026-03-31 18:11:41

深圳市2026年初中学业水平考试化学实验操作模拟考试视频指导

深圳市2026年初中学业水平考试

化学实验操作模拟考试

演示视频

A组：二氧化碳的实验室制取与检验

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B组：金属的化学性质

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C组：配制一定溶质质量分数的氯化钠溶液

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资料转载自深圳市初中化学团队

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CONNECT:[ UseTime:0.000412s ] mysql:host=127.0.0.1;port=3306;dbname=c460;charset=utf8mb4
SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000749s ]
SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000273s ]
SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000277s ]
SHOW FULL COLUMNS FROM `set` [ RunTime:0.000628s ]
SELECT * FROM `set` [ RunTime:0.000208s ]
SHOW FULL COLUMNS FROM `article` [ RunTime:0.000557s ]
SELECT * FROM `article` WHERE `id` = 532386 LIMIT 1 [ RunTime:0.003681s ]
UPDATE `article` SET `lasttime` = 1775444825 WHERE `id` = 532386 [ RunTime:0.004662s ]
SELECT * FROM `fenlei` WHERE `id` = 64 LIMIT 1 [ RunTime:0.000230s ]
SELECT * FROM `article` WHERE `id` < 532386 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000469s ]
SELECT * FROM `article` WHERE `id` > 532386 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000386s ]
SELECT * FROM `article` WHERE `id` < 532386 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.004167s ]
SELECT * FROM `article` WHERE `id` < 532386 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.006543s ]
SELECT * FROM `article` WHERE `id` < 532386 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.009477s ]

0.098204s

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