题目

Goldfish have pretty boring lives, so maybe it’s a good thing they can only concentrate for nine seconds! But according to new research, humans are becoming like goldfish. Our attention span (时长) is getting shorter...and it’s all because of technology.“We move quickly from one site to another on the web, ”says Doctor Ted Selker, a computer scientist from Massachusetts, “and we are losing the ability to concentrate.” With millions of websites to choose from, the attention span of the average internet user is just seconds. There are other digital distractions (分心) too: email,“经济特区成功吸引了大量外国投资，外资企业不单为中国政府提供大量税收，还为中国引入先进生产管理技术…… ”材料论述了经济特区（ ）A. 建立的原因 B. 建立的目的 C. 发展的过程 D. 发挥的作用