When the writer first went to the Red Cross clinic in Beijing to donate his bloo

游客2023-09-28  16

问题 When the writer first went to the Red Cross clinic in Beijing to donate his blood he was surprised ______. [br] The number of voluntary blood donors in Beijing in 1993 is ______.

选项 A、more than 30 000
B、more than 28 000
C、more than 15 000
D、more than 14 000

答案 B

解析
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