3 quốc gia ĐNA giành độc lập sớm nhất là những nước nào ? Lá cờ đầu của phong trào giải phóng dân tộc mĩ la tinh là ? . Nguyên tắc quan trong nhất, chỉ đạo hoạt động của Liệp hợp quốc là gì ?? Nguyên nhân làm cho bản đồ chính trị thế giới có những biến đổi to lớn và sâu sắc là gì ?? Sự kiện đánh dấu sự chấm dứt hoàn toàn chế độ phân biệt chủng tộc ở châu phi là gì ? giúp với ạ

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