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英语翻译Many medical treatments and procedures have been develop

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英语翻译
Many medical treatments and procedures have been developed from experiments on animals.Since animals share many features with humans,scientists use animals to test the safety and effectiveness of newly developed drugs before pilot testing on small groups of patients.Medical teams practice new operating techniques such as transplants on animals.Without animal testing,many procedures or new drugs would be extremely unsafe.
很多医疗方法和手段都是来自于动物实验.动物和人类有很多共同点,所以科学家们在小范围内对人类试用某种新药之前,都会那动物测试其安全性和有效性.医疗团队会在动物身上练习某种外科手术,比如器官移植等.没有动物实验,很多新疗法和新药物都会是极不安全的.