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高中数学必修三必修四教材预习时间

  • 2026-09-19 19:27:02
高中数学必修三必修四教材预习时间

高一北京市海淀区和西城区等用人教B版的高一高分段学生的课外补习时间参考（补教材基础）：
人教B版必修三教材 共两章
第七章 三角函数，5小时左右
第八章 向量的数量积与三角恒等变换 ，2小时左右
必修四
第九章 解三角形 3小时到4小时
第十章 复数 2小时
第十一章 立体几何初步 6到8小时，
共18到21小时。

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外研社版初中英语八年级下册电子课本及单词表(2026年新版教材)

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  1. CONNECT:[ UseTime:0.000451s ] mysql:host=172.18.0.4;port=3306;dbname=c_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000685s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000313s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000350s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000499s ]
  6. SELECT * FROM `set` [ RunTime:0.000256s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000746s ]
  8. SELECT * FROM `article` WHERE `id` = 462831 LIMIT 1 [ RunTime:0.000348s ]
  9. UPDATE `article` SET `lasttime` = 1789946358 WHERE `id` = 462831 [ RunTime:0.001027s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 66 LIMIT 1 [ RunTime:0.000270s ]
  11. SELECT * FROM `article` WHERE `id` < 462831 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000355s ]
  12. SELECT * FROM `article` WHERE `id` > 462831 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000337s ]
  13. SELECT * FROM `article` WHERE `id` < 462831 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000731s ]
  14. SELECT * FROM `article` WHERE `id` < 462831 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.000711s ]
  15. SELECT * FROM `article` WHERE `id` < 462831 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.000816s ]
0.081710s