Passage C
          In the mid-1990s, the Internet took off because its technological time had come.Years of steady progress in developing more powerful and less expensive computers,Web software and faster communications links finally came together. A similarpattern is emerging today, experts says, for what is behind called smartinfrastructure—more efficient and environmentally friendlier systems for managing,among other things, commuter traffic, food distribution, electric grids and waterways.This time, the crucial technological ingredients include low-cost sensors and cleversoftware for analytics and visualization, as well as computing firepower.
          Wireless sensors can collect and transmit information from almost anyobject—for instance, roads, food crates, utility lines and water pipes. And theimproved software helps interpret the huge flow of information. The payoff, expertssay, should translate into big reductions in energy used, greenhouse gases emittedand natural resources consumed.
          Smart infrastructure is a new horizon for computer technology. Computers haveproven themselves powerful tools for calculation and communication. The next step,experts say, is for computers to become intelligent instruments of control, linkingthem to data-generating sensors throughout the planet’s infrastructure.
 Questions 8-10
【題組】8. What is the best title for this reading?
(A) Making Energy, Traffic and Shipping more Affordable
(B) Smarter Tools Monitor Daily Life
(C) More Powerful and Less Expensive Computers
(D) The Mid-1990s Internet