The Chinese lunar calendar uses 12 animals of the rat, ox, tiger, rabbit, dragon, snake, horse, sheep, monkey, rooster, dog and pig to represent the year in turn. AD 1000 is the year of the rat. What year is AD 2020? (A total of 12 animal zodiac signs, a cycle every 12 years)
我国农历用鼠、牛、虎、兔、龙、蛇、马、羊、猴、鸡、狗和猪12种动物按顺序轮流代表年份，公元1000年是鼠年，公元2020年是什么年？(共12种动物属相，每12年一个循环)
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