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发表于:2018-11-29 / 阅读(176) / 评论(0)

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英语口语大赢家Topic94:买电器Purchasing Household Appliances

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发表于:2018-12-03 / 阅读(58) / 评论(0)

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This is Scientific American Sixty Seconds Science, I'm Sophie Bushwick, got a minute? When Mexican tetra fish moved into darker caves long ago, they evolved to deal with the dark by becoming albino and going blind. A new research shows that the chang

发表于:2018-12-24 / 阅读(101) / 评论(0)

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T Tanshinone IIA 丹参酮IIA Tanshinone I 丹参酮I Tanshinone IIB 丹参酮IIB Taraxasterol 蒲公英甾醇 Taraxerol 蒲公英赛醇 Tauro ursodesoxy cholic acid 牛磺熊去氧胆酸 Taxifolin 花旗

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发表于:2019-01-03 / 阅读(102) / 评论(0)

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发表于:2019-01-12 / 阅读(83) / 评论(0)

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Aircraft maker Boeing says commercial flights of the grounded 787 Dreamliner jets could resume within weeks. We are going to be dependent upon, as we move through the certification process, to determine when we actually get back in the air in terms o

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今天我们要学的词是robocall。 Robocall指的是由计算机系统自动拨号，播放事先录制的电话留言的宣传电话。Robocall是产品促销和政治竞选的常用手段。A GOP group launched its robocall campaign against Sen

发表于:2019-02-04 / 阅读(131) / 评论(0)

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发表于:2019-02-05 / 阅读(148) / 评论(0)

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发表于:2019-02-08 / 阅读(90) / 评论(0)

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发表于:2019-02-13 / 阅读(130) / 评论(0)

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Voice 1 Hello. Im Rachel Hobson. Voice 2 And Im Mike Procter. Welcome to Spotlight. This programme uses a special English method of broadcasting. It is easier for people to understand, no matter where in the world they live. Voice 3 I was in the tent

发表于:2019-02-14 / 阅读(76) / 评论(0)

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10 Getting The Lead Out 第十章把铅撵出去 In the late 1940s, a graduate student at the University of Chicago named Clair Patterson (who was, first name notwithstanding, an Iowa farm boy by origin) was using a new method of lead isotope measur

发表于:2019-02-17 / 阅读(111) / 评论(0)

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发表于:2019-02-26 / 阅读(148) / 评论(0)

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