当烟草叶片受到甲种蛾幼虫的采食刺激后，会释放出挥发性的化学物质。这种化学物质白天会吸引甲种蛾幼虫的天敌，夜间会驱赶乙种蛾，使其不能在烟草叶片上产卵(乙种蛾幼虫也采食烟草叶片)。加图所示。据此回答：

炎炎烈日下，达州交警邓拥军搀扶一名四肢残疾的乞丐国马路，被一路人拍下来传到了网上，网友们纷纷称赞邓拥军事“达州最帅交警”。这一事件不能反映的是（   ） 

阅读理解

    Look, there are some special days in April. April Fool's Day is on April 1^st. Children will have fun on that day. Easter is also in April. There will be an Easter party. Children will play many games. They will roll (滚动)Easter eggs and meet the Easter Bunny. What a happy party! When is the sports meet? It's on 21^st . That will be fun too. Everyone loves April.

我区许多学校的校园内的石头上刻着名人名言。“石头上刻着名人名言，石头是物质的，但表现的是精神的内容。”对这句话的理解，下列说法正确的是（    ）