The World Health Organization says China has agreed to hand over bird flu virus samples that W. H. O. scientists have been requesting since last year.
世界卫生组织说，中国同意向世卫组织递交该组织去年起就一直要求的禽流感病毒样本。
The World Health Organization says China has agreed to hand over bird flu virus samples that W. H. O. scientists have been requesting since last year.
世界卫生组织说，中国同意向世卫组织递交该组织去年起就一直要求的禽流感病毒样本。
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