Over the years,the effectiveeness and the enics of using financial incentives(刺激)to increase the supply of transplant organs has been a_____________. ( 章节：8 难度：4)
- A、potential
- B、contentious issue
- C、and opponents
- D、donated
正确答案:B
答案解析:有
微信扫一扫手机做题
做题室题库