2013年4月新gre考试:gre阅读模拟练习(7)
Questions 1-7 Seven pedigreed dogs—Frieda, King, Laddie, Max., Pal, Spot, and Toppy—are entered in a dog show. The dogs must be scheduled into seven consecutive time slots for judging, and only one dog can be scheduled into any time slot. The schedule must be based on the following constraints: Frieda cannot be in a time slot immediately before or immediately after Max's time slot Laddie cannot be in a time slot immediately before or immediately after Toppy's time slot. Pal's time slot must be sometime before Spot's time slot. King must... [ 查看全文 ]2013年4月新gre考试:gre阅读模拟练习(7)的相关文章