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  3. Many of the workers who served at the World Trade Center after the September eleventh attacks became sick. They breathed a harmf

Many of the workers who served at the World Trade Center after the September eleventh attacks became sick. They breathed a harmf

admin2010-06-11  45
问题     Many of the workers who served at the World Trade Center after the September eleventh attacks became sick. They breathed a harmful mix of dust, smoke and chemicals in the ruins of the Twin Towers and a third building that fell. Some went clays without good protection for their lungs. Five years later, many of the thousands who worked at Ground Zero in the early days after the attacks still have health problems.
    Doctors at Mount Sinai Medical Center in New York City have announced the results of the largest study of these workers. The study confirmed high rates of breathing problems in members of the building trades, firefighters, police officers and other workers. Almost seventy percent of the workers in the study had a new or worsened breathing problem. These problems developed during or after their time working in the mountain of wreckage. About sixty percent still had breathing problems at the time of their examination. The researchers say they decided to study the effects on breathing first because other disorders might be slower to appear. Mount Sinai says it tested almost twelve thousand people between two thousand two and two thousand four. Eight out often of them agreed to have their results used in the report. The new results added strength to a Mount Sinai study released in two thousand four. That study was based on only about one thousand workers.
    Some lawmakers have sharply criticized city and state officials for letting workers labor at Ground Zero without satisfactory equipment. Officials have also been criticized for saying the air was relatively safe. State and federal officials have promised more than fifty million dollars to pay for treatment of the workers. Doctor Robin Herbert is one of the directors of the Mount Sinai testing program. She says people are still coming to the hospital for treatment of problems that were caused by the dust at Ground Zero. In her words:" My worry is that money will be gone in a year, and what happens then?"
Who suffer the breathing problems most according to the latest study?
选项
答案The building trades，firefighters，police officers and other workers．
解析 答案见文章第二段第二句话。
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