结构推理
In spite of the fact that ______________________________(移动电话的资费是固定电话资费的两倍), they are still very popular, especially among the young people.
【正确答案】the fee for cell phones calls is usually twice as much as for calls made over fixed lines
【答案解析】[译文] 尽管移动电话的资费通常是固定电话资费的两倍，它们仍然十分受欢迎，尤其是受年轻人欢迎。