46. The author begins his article with Edmund Burke's words to ________.问为什么要用EB的话,EB的话应该在开头,起到某种作用。
47. Misled people tend to think that using an animal in research is ________.被误导的人,文中有人被误导,这个是在问这些人关于动物实验的看法,在作者看来,这是错误的。
48. The example of the grandmotherly woman is used to show the public's ________.例子,例子的作用,用来展示大众的某种态度或习惯。