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【教学课件】沪科版数学七年级上册

  • 2026-10-29 00:27:57
【教学课件】沪科版数学七年级上册
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教学课件
 1.1.1正数与负数 1.2数轴、相反数和绝对值 1.3有理数的大小 1.4.1有理数的加法 1.4.2有理数的减法 1.4.3加、减混合运算 1.5.1 有理数的乘法 1.5.2有理数的除法 1.5.3乘、除混合运算 1.6.1有理数的乘方 1.6.2科学计数法 1.7近似数 2.1.1用字母表示数 2.1.2代数 2.1.3代数式的值 2.2.1合并同类项 2.2.2去括号、添括号 2.2.3整式加减 3.1.1一元一次方程和等式的基本性质 3.1.2一元一次方程及其解法 3.2.1等积变形和行程问题 3.2.2储蓄和销售问题 3.3.2代入法、加减法二元一次方程组 3.3.1二元一次方程组及其解法 3.4.1简单实际问题和行程问题 3.4.2百分率和配套问题 3.5三元一次方程组及其解法 3.6一次方程组与CT技术 4.1几何图形 4.2线段、射线、直线 4.3线段的长短比较 4.4角 4.5角的比较与补（余）角 4.6用尺规作线段与角 5.1数据的收集 5.2数据的整理 5.3用统计图描述数据 5.4从图表中的数据获取信息 5.5综合与实践 水资源浪费现象的调查

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  1. CONNECT:[ UseTime:0.000849s ] mysql:host=172.18.0.4;port=3306;dbname=a_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.001087s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000432s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000385s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000635s ]
  6. SELECT * FROM `set` [ RunTime:0.000310s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000643s ]
  8. SELECT * FROM `article` WHERE `id` = 459211 LIMIT 1 [ RunTime:0.000370s ]
  9. UPDATE `article` SET `lasttime` = 1794169327 WHERE `id` = 459211 [ RunTime:0.001796s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 66 LIMIT 1 [ RunTime:0.000322s ]
  11. SELECT * FROM `article` WHERE `id` < 459211 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000432s ]
  12. SELECT * FROM `article` WHERE `id` > 459211 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000441s ]
  13. SELECT * FROM `article` WHERE `id` < 459211 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000604s ]
  14. SELECT * FROM `article` WHERE `id` < 459211 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.000852s ]
  15. SELECT * FROM `article` WHERE `id` < 459211 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.000812s ]
0.088889s