单项选择题

What is the passage mainly about

A．Science teachers to ban 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

It can be learned from the text that the teachers ban harmful experiments to animals in order to ______.

A．maintain ecological balance
B．please animal welfare groups
C．get financial support from their sponsors
D．protect necessary harmless experiments on animals