某同学不小心划破手指并少量出血,在伤口自动止血中起主要作用的血细胞是( )
A:红细胞
B:白细胞
C:血小板
D:吞噬细胞
— What would you like in the future?
— I want to been engineer I grow up.
读“中国略图”,回答问题.