028Costs of Quitting a Job讲解

060Greek Sacred Groves and Parks讲解

092Portraits as Art讲解

124The Identification of the Genetic Material讲解

TF阅读真题第684篇Escape Mechanisms of Ypsolopha Dentella

TF阅读真题第716篇Indus River Valley Civilization

TF阅读真题第748篇The Origin of the K-T Asteroid

TF阅读真题第780篇Cloth Manufacturing in England

TF阅读真题第813篇when honeybees become foragers

TF阅读真题第845篇Urbanization of Japan