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基于高中数学教材的学法指导案例研究——— 以“点到直线的距离公式”为例

2026-04-04 07:48:14

基于高中数学教材的学法指导案例研究——— 以“点到直线的距离公式”为例

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CONNECT:[ UseTime:0.000598s ] mysql:host=127.0.0.1;port=3306;dbname=c_sjds;charset=utf8mb4
SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000761s ]
SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000299s ]
SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000240s ]
SHOW FULL COLUMNS FROM `set` [ RunTime:0.000471s ]
SELECT * FROM `set` [ RunTime:0.000190s ]
SHOW FULL COLUMNS FROM `article` [ RunTime:0.000497s ]
SELECT * FROM `article` WHERE `id` = 466464 LIMIT 1 [ RunTime:0.000359s ]
UPDATE `article` SET `lasttime` = 1775293886 WHERE `id` = 466464 [ RunTime:0.001236s ]
SELECT * FROM `fenlei` WHERE `id` = 66 LIMIT 1 [ RunTime:0.000308s ]
SELECT * FROM `article` WHERE `id` < 466464 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000553s ]
SELECT * FROM `article` WHERE `id` > 466464 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000466s ]
SELECT * FROM `article` WHERE `id` < 466464 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.001272s ]
SELECT * FROM `article` WHERE `id` < 466464 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.003507s ]
SELECT * FROM `article` WHERE `id` < 466464 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.001658s ]

0.078487s

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