链球菌分类的根据是()
A．细菌的致病作用
B．产生色素的颜色
C．在血液琼脂培养基中溶血的情况
D．鞭毛抗原的特异性
E．对营养的要求
参考答案：C
—Have you found your lost mobile phone?
—No, I haven’t. But I bought yesterday.
A．it
B．one
C．another
D．other
锡降落
