The city has a shortage of Rhesus, or Rh-negativeblood - a strand rare in China, with only three of every 1,000 Han Chinese being Rh-negative.
北京缺少Rh阴性血，这种血在中国很少见。 每一千名汉人当中才有3个人是这种血型。
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Zhu's organization has set up mobile blood centers across Beijing to help to collect 16 liters of Rh-negativeblood that he wants to have on standby for the Olympics.