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A newborn baby is with reddish purple marks on the face, which is caused by a localized area of abnormal blood vessels.This condition is called().

A newborn baby is with reddish purple marks on the face, which is caused by a localized area of abnormal blood vessels.This condition is called().
A.Acne
B.Port-wine stain
C.Butterfly disease
D.Pimple
正确答案:Port-wine stain