看了前辈们的讨论仍然不理解啊,麻烦NN们再指点一下! 14. Intended primarily to stimulate family summer travel, the new airfare, which allows both an adult and a child to fly for the price of one ticket, and also shortens the advance-purchase requirement for family travel to a minimum of seven days rather than fourteen. (A) and also shortens the advance-purchase requirement for family travel to a minimum of seven days rather than (B) and also lessens the advance-purchase requirement for family travel to a seven-day minimum from (C) also shortens the advance-purchase requirement for family travel to a minimum of seven days rather than that of (D) also lessens the advance-purchase requirement for family travel to a seven-day minimum from (E) also shortens the advance-purchase requirement for family travel to a minimum of seven days rather than 答案E,为什么不能选D呢? |