Which of the two computer games did you prefer?

—Actually I didn’t like ______.

A．both of them

B．either of them

C．none of them

D．neither of them

抗生素类药物常用微生物测定法测定其效价，其特点是：

A．简单易行

B．准确度高

C．方法专属性好

D．与临床应用一致

E．灵敏度高，误差较小