单项选择题

What is the passage mainly about

A．Science teachers banning testing harmful to animals.
B．Teachers' policy change in experiment on animals.
C．The new policies of banning harmful experiments to animals.
D．The importance of prohibiting harmful experiments on animals.

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单项选择题

According to the text, animal welfare groups have succeeded in ______.

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

单项选择题

Thurman Grafton suggests that ______.

A．animal abuse is horrible and should be terminated
B．the teachers have been compelled to do all animal experiments
C．prohibition of experiments on animals will discourage students from being curious
D．the International Science and Engineering Fair will cease to operate because of the new policies