Xu Zhiqian
Radiation Exposure Featured
Radiation is energy that travels in the form of waves or high-speed particles. It occurs naturally in sunlight. Man-made radiation is used in X-rays, nuclear weapons, nuclear power plants and cancer treatment. If you are exposed to small amounts of rad ...
Category
Injuries and Wounds
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The Roman Forum is a rectangular forum surrounded by the ruins of several important ancient government buildings at the center of the city of Rome.
Category
Rome
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