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童话故事: 爱丽丝漫游奇境记17
KingAliceQueenThe King looked at Alice carefully and said, "Rule forty-two,all people over a mile high must leave the court." "I'm not a mile high,"said Alice. "You're almost two miles high," sai...
科学60秒:透镜效应:揭开古老星系面纱
Five very old galaxies are now known to astrophysicists, thanks to Albert Einstein. A century ago, Einstein predicted an effect called cosmic gravitational lensing. Picture a massive galaxy out i...
简爱 听写训练103
简爱"Miss Eyre,I can't believe it!"she said. "You are a wonderful young lady,and any young man should be happy to marry you. But Mr.Rochester is a gentleman,from one of the best families in thi...
麦当劳学位
BBCAgainst a background of controversial plans to triple university tuition fees, students feeling the pinch might be tempted by a new degree course where you can study while working full time. ...