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最佳答案：You are going to hear a lecture on protecting the environment(或environmental pro
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最佳答案：1, the high quality of education. British quality of education are among the bes
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最佳答案：1 He couldn't wait to tell his parents the good news when he learnt that he woul
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最佳答案：Kekule,a prestige chemist who is renowned for the discovery of benzene,studied i
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最佳答案：My name am Chen Shu, comes from not a wealthy small town. North can arrive the u