世界上哪个国家允许亲生兄妹合法结婚? https://c.m.163.com/news/a/J0UJO1L40552R2BU.html?spss=newsapp&spsnuid=Ij2ktcF993t2%2BCmmm2bwyqPm7M%2BaD%2FgbBC9%2BAraksPw%3D&spsdevid=Mjg0NTU4YmVhMGIxOGY2ZV8zODQ2MjE5OTBBNTNfT1BQT19QRlRNMTA%253D&spsvid=MTcxODgzMDg5OTUyNl8yMzYwOTgzNDBfYnhEYnREeFo%253D&spsshare=default&spsts=1718865588016&spstoken=vZY%2FbMAMNpBl8BqpZ3rq5oCJyeWrUnkK47QUydQvoJDOm%2FdvBmkXRf7uM0jim3Q6L3t2tSUDmf6%2FhhfCEUYmfA%3D%3D 这是网易新闻刷到的 这个应该是小编自己编还是冰岛真就那么开放?