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People have experimented on animals in order to develop new drugs， improve the success rate of surgeries and so on.
People have experimented on animals in order to develop new drugs， improve the success rate of surgeries and so on.
A.正确
B.错误
正确答案：正确
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大学英语
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Which can we learn from the movie Hachi：A Dog‘s Tale？
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There are usually three parts in an argumentative essay：theme part， evidence to support points of view， and conclusion.