2. 职称英语
  3. As we know, blood types A and B cannot receive AB, but AB may receive A or B.Typ

As we know, blood types A and B cannot receive AB, but AB may receive A or B.Typ

游客2025-04-06  0
问题 As we know, blood types A and B cannot receive AB, but AB may receive A or B.Type O can give to any other group; hence it is often called the______donor.
选项 A、common
B、universal
C、general
D、popular
答案 B
解析 固定用法。根据常识O型血的人是“万能献血者”，固定表达为universal donor。故答案为B。
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