2. 外语
  3. 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 oft

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 oft

admin2015-04-24  45
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。
转载请注明原文地址:https://kaotiyun.com/show/9ALO777K
0

考博英语

相关试题推荐
随机试题
最新回复(0)