单项选择题

The "Aqua Power", sold by the Germany utility Bayernwerk, is ______.

A．green energy
B．less expensive
C．ordinary electricity
D．not popular
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单项选择题
A characteristic of the information age is that ______.
A．the service industry is relying more and more on the female work force
B．manufacturing industries are steadily increasing
C．people find it harder and harder to earn a living by working in factories
D．most of the job opportunities can now be found in service industry
单项选择题
The reductions on greenhouse gas emissions, called for in the Kyoto Treaty, turned out to be ______.
A．too dangerous for the U.S. economy
B．unrealistic for the year 2000
C．good for oil, coal and chemical companies
D．not too difficult to achieve in the U.S.
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