题目

“May we all be blessed with longevity. Though miles apart, we are still able to share the beauty of the moon together (但愿人长久,千里共婵娟).” wrote Su Shi, a poet during the Song Dynasty, in his well-known poem to his younger brother Su Zhe.The moon is at its brightest on the 15th day of the eighth month of the lunar calendar(阴历). On this day, people celebrate the Mid-Autumn Festival.In ancient China, that day was a harvest (收获)festival because crops were harvested during that period.Just like Thanksgiving in western countries, families also try to get together for the 读下表，分析回答下列各题。1.表中X的天数是A.103B.111C.113D.1172.引起其极昼、极夜不等长是由于A.黄赤交角的存在B.地球的公转轨道C.地球自转速度的变化D.地球是不规则球体