教学实验前通过学习风格调查表和前测试卷挑选出实验受试，保证实验组和控制组除了学习风格不同外，在性别、年龄、前测成绩等方面没有差异。

They were chosen out of 99 students to make sure that the Experimental Groups and the Control Groups had no difference except their learning styles.

youdao

教学实验前通过学习风格调查表和前测试卷挑选出实验受试，保证实验组和控制组除了学习风格不同外，在性别、年龄、前测成绩等方面没有差异。

They were chosen out of 99 students to make sure that the Experimental Groups and the Control Groups had no difference except their learning styles.

youdao