Interest is steadily spreading from a
minority of enthusiasts in developing renewable sources of energy--wind, wave
and solar power, tidal and geothermal energy. Additional support for them has
come with a proposal to explore the untapped sources of hydro-electric power in
Scotland. The details are provided by Mr. William Manser in a study provided for an expert committee to look at the developments possible for hydro-electric sites and, more important, for means of financing them. There is a clear industrial connection in Mr. Manser’s study because it was done for the Federation of Civil Engineering Contractors; hydro-electric schemes, by definition, have a large civil engineering component in them. Mr. Manser estimates that wind power could theoretically provide more than 7 percent of electricity supply in the United A. conservation of energy. B. high costs of energy sources. C. recycling of resources. D. energy generated by water power. [填空题]Bicycle sales decreased steadily from 1998 to 2000
[填空题]Sales increased steadily from 1998 to 2000.
[填空题]Profits rose steadily from August to October.
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