A-A+
Many researchers are currently trying to____.A
问题详情
Many researchers are currently trying to____.
A．use animals involved in research more effectively
B．slow down the transition for some experiments
C．challenge the scientific value of animal testing
D．raise the cost of using any animals in research此题为多项选择题。请帮忙给出正确答案和分析，谢谢！
参考答案
正确答案：A
解析：题目问：很多研究者正试图干什么?通过阅读文章可知，由于不同的物种对相同的程序会有不同的反应，所以，一些研究者正试图减少试验用动物的数量，并提高试验用动物的效用。第二段“That is why many researchers are working on ways of reducing the number of animal experiments needed and of making those that still happen more effective．”所以，答案是A。
