单项选择题

A. B. C. D.

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单项选择题

对畜禽进行结核病检疫诊断，常用的主要方法是（）
A、平板凝集试验
B、血凝-血凝抑制试验
C、 ELISA
D、结核菌素皮内注射变态反应法

单项选择题

There are two main points to individualism. First, that individual freedom and self-expression are guaranteed, and second, that people are allowed to pursue their own self-interest in order to achieve the best overall good for society.

A．True
B．False