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Lesson 19

17. Professor Smith and Professor Brown will ____ in giving the class lectures. A. alter B. change C. alternate D. differ alter alter 改变(把某物改大改小) change 改变(强调结果) from...t

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智慧背囊超越自我

Artificial Leaf Turns Sunlight into Electric Power

Scientists at the Massachusetts Institute of Technology have turned to Mother Nature for inspiration, inventing a device that mimics photosynthesis, the process plants use to convert sunlight and water into usable energy. MIT chemistry professor Dani

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情景对话： Jesse: Oh what, I can talk now? Fine. 哦，啥？我可以说话了？好吧 Jesse: That goes double for me. 我超级同意的好吗！知识点讲解： 1、That goes double for me. 我双倍的同意/我超级同意！【例句一

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每天三分钟学英语

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A very special teacher in a high school had a husband who died suddenly of a heart attack. About a week after his death, she shared some of her thoughts with a classroom of students. As the late afternoon sunlight shined through the classroom windows

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For thousands of years, this powerful current has regenerated the reef. But it can not repair everything. Beneath the waves lie deeper scarsthe largest coral reef on Earth is home to a dazzling diversity of marine species, some found nowhere else on

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学英语单词

alloplyploid (kihara &kono 1926)

automatic beam intensity limiter

basal vein

body armour

break-up

carboxylic styrene butadiene latex

color purity magnet