You can take_______ of the two toy cars and leave the other for your brother.

A．both

B．none

C．either

D．neither

我国最常见的贫血为()

A．再生障碍性贫血

B．溶血性贫血

C．缺铁性贫血

D．恶性贫血

E．营养性巨幼细胞贫血