新东方优美背诵短文50篇 Unit48:Bacteria

Bacteria are extremely small living things. While we measure our own sizes in inches or centimeters, bacterial size is measured in microns. One micron is a thousandth of a millimeter: a pinhead is about a millimeter across. Rod-shaped bacteria are u

发表于:2018-11-28 / 阅读(452) / 评论(0)

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新东方背诵文选 L48 Bacteria

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nobody likes getting shots, but what if you could make the needles so tiny that they broke skin painlessly. engineers from top university have created such micro needles, made from major protein in silk, fibrolin. the work is in the journal of advanc

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2017年CRI Dutch designer pictures the future of Smog Free Tower in China

Dutch designer Daan Roosegaarde and his team have brought the world's largest anti-smog tower to tthe 2017 Summer Davos in Dalian. A photo taken on June 28, 2017 shows the Smog Free Tower displayed during the Summer Davos in Dalian, Liaoning Province

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双语有声阅读：细菌

Bacteria Bacteria are extremely small living things. While we measure our own sizes in inches or centimeters, bacterial size is measured in microns. One micron is a thousandth of a millimeter: a pinhead is about a millimeter across. Rod-shaped bacter

发表于:2019-02-17 / 阅读(88) / 评论(0)

双语有声阅读

双语有声阅读：Bacteria

48 Bacteria Bacteria are extremely small living things. While we measure our own sizes in inches or centimeters, bacterial size is measured in microns. One micron is a thousandth of a millimeter: a pinhead is about a millimeter across. Rod-shaped bac

发表于:2019-02-17 / 阅读(71) / 评论(0)

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