178. There are four basic _____ of blood
问题:
178. There are four basic _____ of blood in the human body. What do you belong to, A, B, AB or O?
A.kinds
B.sorts
C.types
D.Classes
178. There are four basic _____ of blood in the human body. What do you belong to, A, B, AB or O?
A.kinds
B.sorts
C.types
D.Classes