Sau đại thắng mùa xuân 1975, việc hoàn thành thống nhất đất nước về mặt nhà nước ở Việt Nam được đánh dấu bằng kết quả của A. Hội nghị Hiệp thương chính trị thống nhất đất nước (11-1975) B. Hội nghị Ban chấp hành Trung ương Đảng lần thứ 24 (9-1975) C. Đại hội đại biểu toàn quốc lần thứ VI của Đảng (12-1986) D. Kì họp thứ nhất Quốc hội khóa VI (6,7-1976)

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