46. The author begins his article with Edmund Burke\'s words to ________.作者文章以 Edmund Burke\'s words 开头是为了说明什么
47. Misled people tend to think that using an animal in research is ________. Misled people认为用动物做试验会怎么样,是好还是不好
48. The example of the grandmotherly woman is used to show the public\'s ________.
grandmotherly woman的例子是为了说明什么