单词：saline purgative
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Text Ernest Hemingway's story is about an incident that happens between a father and his son. The small boy's misunderstanding of the difference in measuring temperature on a Fahrenheit and a Celsius Scale causes him to believe that he is drying of a
大学英语精读第三册
SCOTT SIMON, HOST: Now it's time for the last in our series of holiday recipes from our colleagues here at NPR. We've heard about Christmas breads and Turkey tacos and mofongo and also to you, but the person who started it all joins us now. Susan Sta
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But when we had ascended to an elevation of about 250 feet, we were stopped by insurmountable obstacles. The converging inside walls changed into overhangs, and our climb into a circular stroll. 不过，到了二百英尺高左右，我们不能再上
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The Salinity of Ocean Waters If the salinity of ocean waters is analyzed, it is found to vary only slightly from place to place. Nevertheless, some of these small changes are important. There are three basic processes that cause a change in oceanic s
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The Telescope 望远镜 When do you use a telescope? 你什么时候使用望远镜？ A telescope is long and tube sheet. It has lenses inside. 望远镜是长管状的薄片,里面有透镜。 It helps people see things far away. 它帮人们看远处
与美国小学生一起学英文第6册
China's father of hybrid rice is planning to expand its production of sea-rice at a newly founded research center in Qingdao, a port city in the eastern province of Shandong, local sources said last Saturday. 据当地知情人士上周六透露，中国
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