浙江宁波市高考英语阅读理解(二轮)基础选练(2)及答案【高考复习】阅读理解In an ideal world,people would not test medicines on animals
Such experiments are stressful and sometimes painful for animals,and expensive and timeconsuming for people
Yet animal experimentation is still needed to help bridge vast gaps in medical knowledge
That is why there are some 50 to 100 million animals used in research around the world each year
Europe,on the whole,has the world’s most restrictive laws on animal experiments
Even so,its scientists use some 12 million animals a year,most of them mice and rats,for medical research
Official statistics show that just 1
1 million animals are used in research in America each year
But that is misleading
The American authorities do not think mice and rats are worth counting and,as these are the most commo