禁烟令带来心脏病的低发率 (1)
Colorado
Janet Collins
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科学60秒:树木造就的现代河流
Rivers today have high muddy banks, sandbars and bends. But they didn’t always look that way. Because it wasn’t until the of tree-like plants, some 330 million years ago, that rivers were corr...
科学60秒:焦虑成疾不要紧,奋笔疾书帮大忙 Writing Exercise-
Performance anxiety can be ____1____. Entertainers who suffer from it come up with creative defenses. Bono has his purple shades. The indie rock singer Cat Power faces away from the audience. Oth...
背诵美文——公共教育的角色变化
Changing Roles of Public EducationOne of the most important social developments that helped to make possible a shift in thinking about the role of public educatio...
照亮黑暗角落的光芒
短文Shining Light in Dark Corners "Dr.Papaderos, what is the meaning of life?" The usual laughter followed, and people stirred to go. Papaderos held up his hand a...