Bill is an English boy. He is twelve. He lives in China with his family. There are four people in his family. They are his father Jack Cliton, his mother Catherine and his little sister Abby. He has a yellow dog. Its name is Barbi. His father is mending his bike. What is Bill doing? Ah, he is doing Chinese homework. He can't speak Chinese very well. But he loves Chinese very much. Bill's father works in middle school. He is an English teacher. His mother is in a TV factory. Bill and his sister go to the same school.

Z某在其个人自媒体上发布一首改编版“因为爱情饭煲版”，宣传自家的电饭煲。《因为爱情》的词曲作者据此提出索赔500万元。Z某自知理亏遂向词曲作者致歉，承诺愿意承担相关法律责任。由此可见（  ）

①民事权利的实现得益于人们的实际行动

②作为精神产品的词曲不宜用商业用途

③音乐著作权只能由著作权人自己行使

④因为作品的改编权、表演权受法律保护

阅读《再别康桥》，回答问题

 “金柳”“青荇”等意象在诗中有什么表达效果？诗人为何“甘心做一条水草”？

①氯化钠②小苏打③生石灰④石灰石⑤碳酸钠