单选题
Is technology changing our brains? A new study adds to a growing body of research that says it is. According to the study, a 27 shift in how we gather information and communicate with one another has touched off an era of rapid evolution that may 28 change the human brain as we know it. The impact of technology on our brain should not come as a 29 . Professional musicians have more gray matter in brain regions 30 for planning finger movements. And athletes' brains are bulkier in areas that 31 hand-eye coordination. That's because the more time you devote to a specific activity, the stronger the neural (神经系统的) pathways responsible for executing that activity become. So it makes 32 that people who process a constant stream of digital information would have more neurons dedicated to filtering (过滤) that information. To see how the Internet might be rewiring us, the brains of 24 adults were 33 as they performed a simulated Web search, and again as they read a page of text. During the Web search, those who reported using the Internet 34 in their everyday lives showed twice as much signaling in brain regions responsible for decision-making and complex reasoning, compared with those who had 35 Internet exposure. The findings suggest that Internet use enhances the brain's 36 to be stimulated, and that Internet reading activates more brain regions than printed words. A. abundant F. limited K. scarcely B. capacity G. monitored L. sense C. control H. regularly M. stability D. dramatic I. responsible N. surprise E. immediately J. restrain O. ultimately