皇冠体育app

Improving the quality of drinking water
(newsphoto)
Updated: 2004-03-23 01:39

E Xueli, a professor at the 皇冠体育app Disease Control and Prevention Center, explains how water-purifying machines can improve the quality of drinking water. He advocates that every family should form good habits in using water in a more healthy and environmentally friendly way. It is reported that there are 3-4 million people dying from water-related diseases every year. [newsphoto]

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