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A．People shed more than any other animal indoors.B．People do not keep their room tidy.C．People’s skin flakes are small enough to float in the air and pollute the indoor air.D．The furniture people buy is in bad quality.
A．People shed more than any other animal indoors.
B．People do not keep their room tidy.
C．People’s skin flakes are small enough to float in the air and pollute the indoor air.
D．The furniture people buy is in bad quality.
问答题
The threat from global warming, he reports, Is very real. It is only a matter of time before the temperature of the surface of the Earth becomes uncomfortable warm. What can we do Well frankly, l don’t believe we’ll ever be able to supply our power needs by simple devices such as windmills. I think the restriction of emissions of greenhouse gases will require the building of nuclear power stations in many places. The single most important development would be if there were some agreement on world population, because global warming will depend intrinsically on how much energy is consumed. But one of the reasons why the human population is growing so fast -- it is unlikely to stop this side of eight billionis precisely because we opted out of natural selection.
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