药物过敏的原因是________________________________________。
抵抗抗原侵入的功能过强
—What do you think of the girl?
—Not only ________ well but also ________ modest.
A.she works;she is
B.does she work;she is
C.does she work;is she
D.she works;is she
某人的红细胞与B型血的血清凝集,而其血清与B型血红细胞不凝,此人血型应该是()
A.AB型
B.O型
C.A型
D.B型
E.Rh阳性型