论文部分内容阅读
初中生理卫生呼吸系统“体内气体的交换和运输”一节有一个验证实验“人体呼出的气体中含有较多的二氧化碳”，此实验是一个必做实验。在实验中教材沿用经典的方法：用吸管向澄清的石灰水中吹气直到产生混浊为止。此实验的设计是针对课本和教参中有关数学统计和图解示意图...
There is a verification experiment in the section “Transition and Transport of Gases in the Body” of the Junior High School Physiological Hygiene Respiratory System “The gas exhaled by the human body contains more carbon dioxide”. This experiment is a must-do experiment. In the experiment, the textbook followed the classical method: use a straw to blow in clear lime water until turbidity occurs. The design of this experiment is based on textbook statistics and schematic diagrams of mathematical statistics and diagrams...