若U={1，2，3，4，5，6}，M={1，2，4}，N={2，3，6}，则∁_U（M∪N）=（　　）

    There was a park near my home. 1I didn't go there often. Many people said there was 2 .

    One afternoon, I went into  3and found it was really small. I walked4because there was nothing much to see. Suddenly*, I found myself standing in front of two paths. “Which way should I go?” I asked myself when I looked at the two different paths. One was wide and clean 5flowers on both sides. But6 didn't look nice. It was narrow*and dirty. Grass grew everywhere. Of course I wanted to take the 7way. But a strange feeling made me choose the dirty path. It wasn't nice, but I didn't give up. At last, I came to the end of the path. Ah! There was a nice small garden there, maybe 8 garden in my hometown. There were green trees, colorful flowers and lovely chairs. I thought it was the nicest area of the park. And I spent a 9 afternoon in it.

    My trip to the park made me understand something about life. Why not 10a different way next time? Don't be afraid! You may get a big surprise.

根据入射光线和折射光线，在图中的虚线框内画出适当的透镜。

阅读材料，回答问题：

    2016年12月31日下午17时23分，在云南墨江县一所学校食堂中出现了惊险一幕：一名13岁的小女孩在玩耍时，头不慎被食堂玻璃门夹住，情况十分危急。接到群众报警后，墨江消防立即出动1辆消防车7名官兵赶赴现场施救，消防官兵经过半个多小时的紧张施救，成功将受困女孩救出。