全国大众英语80篇背诵阅读带翻译(四十五) The Source of Energy A summary of the physical and chemical nature of life must begin, not on the Earth, but in the Sun; in fact, at the Sun’s very cente... / 2010-06-08 / 查看 512 次

全国大众英语80篇背诵阅读带翻译(八十) Evolution and Wheels In the past, evolutionary biologists contemplating the absence of wheels in nature agreed that the explanation was not undesirability: ... / 2010-06-08 / 查看 7 次

PETS阅读：英语100篇精读集合（初级篇）6 Passage Six（The Present Is the Most Important） Shams and delusions are esteemed for soundest truths, while reality is fabulous. If men would steadily ob... / 2010-06-08 / 查看 8 次