078Mesopotamian and Egyptian Settlement Patterns讲解

082Motor Development in Children讲解

002Attempts at Determining Earth s Age讲解

听力音频：   雅思听力真题第164套音频   SECTION 1 : QUESTIONS 1-10 Question 1   Choose the correct letter, A, B or C. Example What’s the name of the accommod...

9分达人阅读第03套P3-Assessing the Risk

9分达人阅读第14套P2- Corporate Social Responsibility

9分达人阅读第24套P3-What is Meaning?

9分达人阅读第35套P2-Florida Bay’s Ecological Problems

9分达人阅读第46套P1-The risks agriculture faces in developing countries

9分达人阅读第56套P3