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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热门试题

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

单项选择题

In what way is the computer superior to the human brain

A．Its more logical behavior.
B．Its faster calculating speed.
C．Its better job done on the Turing test.
D．Its performing several operations simultaneously.