Paragraph NineIn a new study, a team of neuroscientists and psychologists from Massachusetts Institute of Technology （MIT） discovered that the harder adults tried to learn an artificial language, the worse they were at deciphering the language’s morphology — the structure and deployment of linguistic units such as root words, suffixes, and prefixes.A scientific discovery on language l_____.
【正确答案】：learning
【题目解析】：本段讲的是语言学习的事情。
