如图所示是实验室常用的气体制取装置．在用双氧水和二氧化锰制取氧气的实脸中，可选用的发生和收集装置是____（填装置的编号）．在此反应中，二氧化锰的作用是____．

 如图为“一氧化碳与氧化铁反应”的实验装置．该反应利用CO的还原性，将Fe₂O₃中的铁还原出来．

（1）写出高温条件下CO与Fe₂O₃反应的化学方程式____ ．

（2）实验过程中，常在装置图末端的导管口放一盏燃着的酒精灯（灯焰处于导管口），这样做的目的是____ ．

（3）通过B装置可检验A中的生成物含有CO₂，该反应的化学方程式为____ ．

（4）在此实验中，我们还认识到CO和CO₂的化学性质有许多的不同．

①请写出其中的一点____ ．

②试从微观的角度分析CO和CO₂化学性质不同的原因是　____ ．

My father's day

    My father is a teacher. He teaches Chinese. He likes his job and his students. And the students like him too. He goes to work from Monday to Friday. He does not work on Saturday and Sunday. Every day, he gets up at five thirty. At six, he has breakfast. Then he goes running. He goes to school at seven. He has lunch at school. He goes home at five in the afternoon. At six o'clock, he has dinner. He doesn't watch TV. He likes reading（读）books with me. He goes to bed at nine thirty.

如图中，A--E示意人体的不同结构层次，请据图分析回答下列问题。