June 25, 1982, fell on a Friday. On which day of the week did June 25, 1987, fall? (Note: 1984 was a leap year.)
Sunday
Monday
Tuesday
Wednesday
Thursday
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1982.6.25-19876.25一共：365*5+1(leap year)=1826(天), 1826/7=270....6 5671234（5往后推6天是星期四Thursday）
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1982.6.25-19876.25一共：365*5+1(leap year)=1826(天), 1826/7=270....6
5671234（5往后推6天是星期四Thursday）
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