题目

—Who are these?—They're Jessica' s A . woman; aunt B . woman; aunts C . women; aunt D . women; aunts 答案：D当皮肤某处划破流血时，能聚集到伤口部位进行止血、吞噬病菌的血细胞分别是（ ）A．红细胞、血小板B．白细胞、血小板C．白细胞、红细胞D．血小板、白细胞