双极型场效电晶体积体电路；双载子场效电晶体积体电路

朗文3L看听学英语第四册 Lesson 17

17 Television Day: Computers TV Commentary: ... the astronauts are returning to earth at exactly 5.24. Splash-down will be in the Pacific, 427 miles west of Hawaii. You have often heard announcements like this on television. Scientists can tell us ex

发表于:2018-12-02 / 阅读(84) / 评论(0)

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发表于:2018-12-03 / 阅读(84) / 评论(0)

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发表于:2018-12-13 / 阅读(193) / 评论(0)

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发表于:2018-12-17 / 阅读(86) / 评论(0)

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发表于:2018-12-31 / 阅读(75) / 评论(0)

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发表于:2019-01-01 / 阅读(108) / 评论(0)

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发表于:2019-01-03 / 阅读(66) / 评论(0)

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发表于:2019-01-03 / 阅读(91) / 评论(0)

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发表于:2019-01-03 / 阅读(56) / 评论(0)

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发表于:2019-01-03 / 阅读(148) / 评论(0)

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发表于:2019-01-06 / 阅读(90) / 评论(0)

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发表于:2019-01-19 / 阅读(74) / 评论(0)

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发表于:2019-01-23 / 阅读(57) / 评论(0)

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发表于:2019-01-30 / 阅读(104) / 评论(0)

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Wanganui Collegiate is thinking about becoming a state integrated school. It has been a private Church of England high school for 150 years. Most of that time, it was a boarding school for boys only. Recently it became a co-ed school, open to girls a

发表于:2019-02-06 / 阅读(78) / 评论(0)

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发表于:2019-02-14 / 阅读(94) / 评论(0)

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发表于:2019-02-20 / 阅读(93) / 评论(0)

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发表于:2019-02-24 / 阅读(250) / 评论(0)

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