54÷6=9
61÷7=8…5
33÷4=8…1
验算:
---I don’t know if Aunt Li to look after these“stay-home children”tomorrow morning.
---If he ,I will phone you.
A.comes;will come
B.comes;comes
C.will come;will come
D.will come;comes
HIV主要感染的细胞是()
A.CD+4T细胞
B.单核-吞噬细胞
C.神经胶质细胞
D.骨髓干细胞
E.中性粒细胞