下列现象中，属于与温度变化相适应的现象是（  ）

材料一：波斯湾地区不仅石油资源丰富，而且开采条件也十分优越。石油分布集中，平均每个油田储量达3.5亿吨以上，为超级大油田；并且多分布在海岸附近的海上和陆上，原油外运方便。油田的地下压力高，油井多为自喷井，占油井总数的80%以上。图为阿拉伯半岛示意图。

材料二：沙特阿拉伯是名副其实的“石油王国”。目前，沙特的能源消费保持着6%-8%的年增长率。为了满足不断攀升的能源需求，沙特计划大力发展核能和太阳能等可再生能源，并使其在整体电力结构中的贡献率提高到50%。

阅读短文，从A、B、C、D四个选项中，选出可以填入空白处的正确答案。
    Look at this picture. It is 1 nice classroom. In the picture, you can see a teacher's 2 on his desk. It's a Chinese book. Eight desks and eight chairs in the room. You can see a girl and 3 boys.
    The girl's 4 is Julia. She is eleven. The boy 5 a black hat is Tom. The other boy is Tony. They 6 the same coats and they are the same age. I 7 they are twins. Tom is a 8 boy. A book is in his hand. You 9 see the teacher . 10 is the teacher? He is taking the photo