[填空题]
Answer Questions 71～80 by referring to the comments on 4 different powers in the following magazine article.
Note: Answer each question by choosing A, B, C or D and mark it on ANSWER SHEET 1.
Some choices may be required more than once.
{{B}}A=Hydro power B=Nuclear power C=Coal-fired power D=Solar power
Which power…{{/B}}

Our demand for electricity is climbing so fast that over the next decade U. S. generating capacity must increase by a third. Fossil fuels supply nearly three-quarters of this energy. But the smoke-belching stacks of coal-fired, gas-fired and oil-fired plants are also responsible for about half of our air pollution.
That, we used to think, is a small price to pay for progress. But there is an alternative, one that produces no smoke and can actually create more fuel than it consumes. In many regions it is even cheaper than coal-fired electricity: nuclear power.
Already nuclear pow

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