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25-26烟台高三上期末单选6-装置的各种展示

  • 2026-02-11 10:12:07
25-26烟台高三上期末单选6-装置的各种展示
这题对学优生来说，应该不成问题，我也只是突然奇想，搜一搜教材到底在哪出现过这些装置。结果灼烧在高中遍寻不着，最后竟然还动用到初中课本了。所以真的可能是那段话：怎么你初中没学过么？高中是默认你初中学过的啦。要不你回初中再学一遍？
【A灼烧海带-源自海带提碘第一步】
教材中实在找不到灼烧的图片，我只搜到沪教版胆矾结晶水测定时用到的灼烧装置。其他教材对海带提碘装置也更多是纯文字考察。（试题是苏教版课后题），改成搜坩埚，结果在八年级化学鲁科版找到了仪器图片还对比着蒸发皿。真神奇。
【B氨气防倒吸】加入苯的目的就是防止氨气和水接触导致导管口压强变化而倒吸，结果图示依然错误的将导管插入水中，正确做法将导管口插入苯层。
【D铜和浓硫酸反应】部分学生因为B的氨气极易溶于水要防倒吸，开始考虑二氧化硫作为一个也能跟氢氧化钠发生喷泉实验的物质，到底要不要防倒吸。所以我们还是找课本。我记得是人教版原图，因为这里用铜丝属于创新，而鲁科版还是用的粉末。对照教材确实没有防倒吸。所以这题D是正确答案。
【电镀】鲁科版作为必考实验以设计形式呈现在课本中，没有给最后答案，根据文字表述，考题中铜片和铁片位置错误。人教版图和文字都配好了。
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【4291】童萍:烟台五日行 一场寻幸福 得启迪的温暖旅程

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  1. CONNECT:[ UseTime:0.000671s ] mysql:host=127.0.0.1;port=3306;dbname=g460;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000803s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.006741s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.001597s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000605s ]
  6. SELECT * FROM `set` [ RunTime:0.000212s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000583s ]
  8. SELECT * FROM `article` WHERE `id` = 469363 LIMIT 1 [ RunTime:0.002743s ]
  9. UPDATE `article` SET `lasttime` = 1770806081 WHERE `id` = 469363 [ RunTime:0.015708s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 65 LIMIT 1 [ RunTime:0.005870s ]
  11. SELECT * FROM `article` WHERE `id` < 469363 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000856s ]
  12. SELECT * FROM `article` WHERE `id` > 469363 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000531s ]
  13. SELECT * FROM `article` WHERE `id` < 469363 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000910s ]
  14. SELECT * FROM `article` WHERE `id` < 469363 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.000907s ]
  15. SELECT * FROM `article` WHERE `id` < 469363 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.000771s ]
0.126918s