题目内容
Without animal testing, human would not have mastered so much knowledge about medicine.
查看答案
搜索结果不匹配？点我反馈
更多问题
The animal testing cannot pioneer effects that are advantageous to the heath of individuals.
People can understand more about the animals and human being itself by animal testing.
Millions of people were killed by smallpox and rabies before the 20th century because there was no cure for these diseases.
Animals kept in cages in medicine laboratories suffer more from physical pain than from anxiety, stress and fear.
微信支付 
支付宝支付