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()-在IE浏览器中,是通过哪种技术来播放Flash电影(swf格式的文件)?
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Human beings are always aware of the tough situation between man and nature.
According to the report, the rise of the earth's average surface temperature is attributed to some natural reasons.
The most concentrated deforestation occurs in tropical rainforests.
El Nino phenomenon doesn't occur in a perfectly regular pattern. It seems to happen every 2 to 7 years.
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