Accordingtoanewstudybyscientists,learning secondlan... 国语站 题库 3.05W 大中小设置文字大小 问题详情:According to a new study by scientists, learning second language can lead to increase in a person's brain power. A.a; 不填 B.the; an C.a; an D.the; 不填【回答】C知识点:冠词题型:选择题 TAG标签:#