“杏林”是中医学界的代称。现在中医已迈出中国，走向世界。请指出属于中医学著作的是（    ）

作为未成年人，关爱自己的生命健康应做到（    ）
①在学习生活中注意劳逸结合　     
②严厉打击侵犯未成年人的生命健康的行为　
③杜绝不良嗜好，抵制不良诱惑　   
④多学一些卫生保健方面的知识 

    The bird and the tree are friends．The bird often sings songs in the tree．Autumn comes．The bird has to fly to the south．Spring comes.The bird comes back，but she can’t see the tree．Grass tell her some workers cut the tree down and took him to a factory．Then the bird flies to the factory．The workers told her they cut the tree into wood．They used the wood to make matches．Then they took the matches to a village．The bird flies to the village and sees a girl used the last match to make the fire．The bird sings a sad song to the fire．