- 问题详情: Thereareforty-eightstudentsinourclass.Therearetwenty-threeboysandtwenty-fivegirls.Somestudentsliveneartheschool,andsomeothersliveveryfarfromtheschool.Abouthalfofthestudentscometoschoolbybike.Theyoftengettoschoolataquartertoseven.Aboutte...
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