顺流式离心机

SSS 2009-11-26

Roughly 1,000 years ago, Europe enjoyed several centuries of balmier average temperatures. Dubbed the Medieval Warm Period, it was the last time before the present that agriculture could flourish in Greenland. This era also provided fodder for countl

发表于:2018-12-24 / 阅读(59) / 评论(0)

Scientific American(十一)月

王玉梅托福词汇 Word_list_34

词条含义近义 sensible adj. 明智的，合理的 rational, wise adj. 可感觉到的，明显的 perceivable sensibility n. 敏感性，感性 sensitive adj. 灵敏的 delicate adj. 敏感的，

发表于:2018-12-30 / 阅读(71) / 评论(0)

王玉梅托福词汇配套MP3

VOA慢速英语2018 智能手机app助力治疗蛇毒患者

Smartphone App Helps Snakebite Victims Scientists in Denmark have developed a venom test kit to help doctors treat victims of snake bites. The kit was created to be simple and has only two pieces of equipment: a centrifuge and a smartphone. 丹麦科学

发表于:2019-01-03 / 阅读(39) / 评论(0)

2018年VOA慢速英语(二)月

英国伊朗重开各自驻对方大使馆

TEHRAN, Aug. 23 (Xinhua) -- Iran and Britain agreed on Sunday to enhance cooperation as their embassies reopened in each other's capital after nearly four years of closure. The embassies in Tehran and London are reopened at the level of charge de aff

发表于:2019-02-06 / 阅读(38) / 评论(0)

英语新闻

科学家告诉你：为什么接吻时会闭眼

The real reason people close their eyes when they kiss is because the brain can't deal with more than two things at once. 接吻时闭眼的真正原因是大脑无法同时处理两件以上的事。 That is the finding of academics who have explore

发表于:2019-02-17 / 阅读(55) / 评论(0)

阅读空间

听播客学英语 281 一天没有你

Here is another one of Margarets poems. It is called A Day Without You. A day without you is like a garden with no rain, having no air to breathe, no nourishment. A day without you is like having no friends, being imprisoned, and trapped inside mysel

发表于:2019-03-01 / 阅读(88) / 评论(0)

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