[单项选择]Under pressure from animal welfare groups, two national science teachers’ associations have adopted guidelines that ban classroom experiments harming animals. The National Association of Biology Teachers and the National Science Teachers’ Association hope to end animal abuse in elementary and secondary schools and, in turn, discourage students from mishandling animals in home experiments and science fair projects.
Animal welfare groups are apparently most concerned with high school students experimenting with animals in extracurricular projects. Barbara Orlans, President of the Scientists’ Center for Animal Welfare, said that students have been performing surgery at random, testing known poisonous substances, and running other pathology (病理学) experiments on animals without even knowing normal physiology (生理学).
At one science fair, a student cut off the leg and tail of a lizard (蜥蜴) to demonstrate that only the tail can regenerate, she said. In anothe
A. stopping all animal abuse in schools
B. establishing guidelines that ban classroom experiments harming animals
C. protecting animals from being experimented with in extracurricular projects
D. persuading two national science teachers’ associations to adopt an animal protection policy

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