rebe
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large quantities of X-ray could be harmful, and as a result many people suffered health problems. What do you think are some things today in our society that may one day prove to be very harmful to our health, but which we do not know yet?
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Posted: 2012-03-27 00:39:00
why x-rays are harmful
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Posted: 2012-03-27 00:44:00
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