如图是用比例模型来表示物质间发生化学变化的微观示意图．能用该表示的化学反应是（    ）

短文改错

    My friend Henry, with who I studied in the same class, didn't like studying at school. That's because he couldn't go to high school. He had to return back to his hometown, where his father wished him to learn to manage our small shop. However, the young man was not interesting in it and didn't do as his father said. He spends a lot of time reading and he also learned how to repair cars. Last month, I received an e-mail from him inviting me take my vacation on his hometown. I started off. Seeing that he was such successful, I said, “Henry, all road lead to Rome. You are great!”

 某校同学开展了如图所示“溶液酸碱性的检验”的实验活动：

有一种爱是最无私的，它是温暖的太阳，奉献着七色光芒；是辽阔的海洋，袒露着宽广胸怀；是肥沃的土壤，哺育儿女茁壮成长……它是（   ）