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高中生物 | 课本未讲,考试易错: 单克隆抗体最易丢分点,一篇讲透

  • 2026-04-04 11:26:19
高中生物 | 课本未讲,考试易错: 单克隆抗体最易丢分点,一篇讲透

今天有学生问：生物课本选择性必修3第48页，明明是用特定的抗原给小鼠进行免疫，为什么最后从小鼠脾脏里得到的B淋巴细胞却是多种？这一问直接戳中了单克隆抗体最核心、最容易丢分的逻辑盲区。今天就把概念、制备流程、两次筛选的原因一次性讲透彻，看完再也不混淆！[图片][图片]一、先搞懂：什...

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  1. CONNECT:[ UseTime:0.000381s ] mysql:host=127.0.0.1;port=3306;dbname=c_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000674s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000280s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000288s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000697s ]
  6. SELECT * FROM `set` [ RunTime:0.000246s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000629s ]
  8. SELECT * FROM `article` WHERE `id` = 465813 LIMIT 1 [ RunTime:0.005247s ]
  9. UPDATE `article` SET `lasttime` = 1775415729 WHERE `id` = 465813 [ RunTime:0.000662s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 66 LIMIT 1 [ RunTime:0.002798s ]
  11. SELECT * FROM `article` WHERE `id` < 465813 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.003691s ]
  12. SELECT * FROM `article` WHERE `id` > 465813 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.001589s ]
  13. SELECT * FROM `article` WHERE `id` < 465813 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.015826s ]
  14. SELECT * FROM `article` WHERE `id` < 465813 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.016518s ]
  15. SELECT * FROM `article` WHERE `id` < 465813 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.007479s ]
0.128379s