题目

This is a true story in Guyana. One day, a child took some silver paper from a cigarette box. He rolled it into a tiny ball and pushed it up his nose. He couldn’t get it out again. He ran crying to his mother. His mother couldn’t get the paper out, either. A week later the paper was still in his nose. His nose began to have a bad smell. So his mother took his child to the hospital. The doctor looked up his nose. She put a tiny steel rod（钢棒） into his nose and felt the paper. She said she would have to cut his nose to get the paper out. The child’s mother came home looking s“波浪谷”是陕西规模最大的丹霞地貌，又称红砂岩峡谷，其岩层形成于古生代二叠纪到中生代白垩纪之间。右图为自然地理要素相互作用示意图。完成下面小题。【1】二叠纪到白垩纪间地球上经历了两次最重要的全球性生物大规模灭绝，除恐龙外，全部灭绝的生物种类是A. 原始鱼类和古老两栖类 B. 海生无脊椎动物种类C. 古老两栖类和孢子植物 D. 原始鱼类和蕨类植物【2】下列要素间的作用最能体现“波浪谷”形成的是A. 甲 B. 乙 C. 丙 D. 丁