46. The author begins his article with Edmund Burke's words to_____.
相关信息句为：
Hearing allegations of cruelty to animals in research settings, many are perplexed that anyone would deliberately harm an animal. 听说在实验场景中残忍的对待动物的宣传，许多人不禁感觉到迷惑，有人故意伤害动物。
For example, a grandmotherly woman staffing an animal rights booth at a recent street fair was distributing a brochure that encouraged readers not to use anything that comes from or is tested in animals---no meat, no fur, no medicines.例如，一位祖母年龄状的老太太在最近的街边集市上摆了保护动物的摊子，向路人散发保护动物权利的小册子……
Scientists must communicate their message to the public in a compassionate, understandable way---in human term, not in the language of molecular biology.科学家必须与公众们沟通交流（以……的方式）。
Much can be done.很多事情能够被做。（能够采取措施）
A. call />
47. Misled people tend to think that using an animal in research is_____.
相关信息句为：
Hearing allegations of cruelty to animals in research settings, many are perplexed that anyone would deliberately harm an animal.
A. cruel but natural.
B. inhuman and unacceptable.
C. inevitable but vicious.
D. pointless and wasteful.
48. The example of the grandmotherly woman is used to show the public's
