关于质点的描述，下列说法中正确的是（   ）

臭氧是理想的烟气脱硝剂，其脱硝反应为：2NO₂（g）+O₃（g）═N₂O₅（g）+O₂（g），反应在恒容密闭容器中进行，下列由该反应相关图象作出的判断正确的是（　　）

完型填空。

    We know health is very important 1 us. So we must keep2. How to do it? We should do more exercises and eat healthy food. We can play sports. For example, we can play football and basketball. We can run. We can attend the high jump and long jump. If you don't  like 3sports. You can go for 4walk every day. It's very good .We should eat fruit, vegetables and other healthy food. We should eat less sweet food and fried food. Breakfast5important. We must eat breakfast every day.

下列各组句子中，加横线词的活用类型不相同的一组是（    ）