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New figures published by the World Health Orga

2022-08-05 17:05:19 问答库阅读 170 次

问题详情

New figures published by the World Health Organization show ______. of all donated blood isn"t tested.
A．15%
B．20%
C．25%
D．30%请帮忙给出正确答案和分析，谢谢！

正确答案：B
解析：根据“NewfigurespublishedbytheWorldHealthOrganizationshow20%ofalldonatedbloodisn'ttested”可以得出B对。