外研版高中英語必修2module1ourbodyandhealthyhabits教學(xué)參考資料(存儲(chǔ)版)
【正文】 of thousands of American workers a year, and lead to tens of billions of dollars annually in workers p claims, according to the Occupational Safety and Health Administration (OSHA). Nelson Liu, a certified acupuncturist in Los Angeles, sees many of these disorders in his patients. People who sit at desks and work on puters e to me with chronic pain in the shoulders, wrist, neck, and eyes, and they often result from
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