题目

As Internet users become more dependent on the Internet to store information, are people remember less? If you know your computer will save information, why store it in your own personal memory, your brain? Experts are wondering if the Internet is changing what we remember and how. In a recent study, Professor Betsy Sparrow conducted some experiments. She and her research team wanted to know the Internet is changing memory. In the first experiment, they gave people 40 unimportant facts to type into a computer. The first group of people understood that the computer would save the informa一个由3个大人和4个孩子组成的家庭来深圳一日游，中旅的收费标准是：如果买4张全票，则其余人打五折优惠，国旅的收费标准是：家庭旅游算团体票，按原价的七五折优惠．这两家旅行社的原价均为每人100元，这个家庭选择哪家旅行社所花的费用少？比较随着人数的变化，哪家旅行社的收费更优惠？