NAVLE（北美执业兽医考题）Day 469

单选题，正确答案是100分，非正确答案为0分，Good Luck！

Q1:Roughly what percentage of mammary tumors in dogs are malignant?大约有多少犬的乳腺肿瘤是恶性的？Find out the answer by clicking on one of the listed choices. Good luck!点击列出的选项找出答案，祝大家好运

A - 10%