题目内容
（请给出正确答案）
提问人：网友孙青青
发布时间：2022-01-07
[主观题]
为进一步探寻引起学习效率下降的原因,我们对实验组和参照组进行了对比研究。()
为进一步探寻引起学习效率下降的原因,我们对实验组和参照组进行了对比研究。（)
A. In order to investigate the reason for the decrease of learning efficiency, a comparative study was conducted between the experimental group and the control group.
B.In order to look into the reason for the decrease of learning efficiency, we conducted a comparative study between the experimental group and the control group.
简答题官方参考答案
（由简答题聘请的专业题库老师提供的解答）
查看官方参考答案
