9分达人听力第67套

9分达人阅读第26套P2-The Study of Chimpanzee Culture

9分达人听力第65套

9分达人阅读第13套P1- The Impact of the Potato

9分达人阅读第27套P1-Timekeeper: Invention of Marine Chronometer

9分达人阅读第28套P2-How deserts are formed

9分达人阅读第13套P2- Ancient Chinese Chariots

9分达人阅读第16套P2-Leaf-Cutting Ants and Fungus

9分达人阅读第10套P1-Otters

9分达人阅读第20套P1-The Extraordinary Watkin Tench