差压隔膜,单面受压隔膜

英语听力—环球英语 1401 Why Do I Hiccup?

Voice 1 Welcome to Spotlight. Im Liz Waid. Voice 2 And Im Ryan Geertsma. Spotlight uses a special English method of broadcasting. It is easier for people to understand, no matter where in the world they live. Voice 1 The year was 1922. Charles Osborn

发表于:2018-12-19 / 阅读(151) / 评论(0)

环球英语 Spotlight

【小龟乐游记】蝙蝠侠：阿甘之城（12）

文本： Batman:I'm listening. Joker:Is someone feeling a little _(1)_? Batman:What do you want? Joker:Oh,Bats,cheer up.It won't kill you.Oops. Batman:Where is the cure? Who has it? Joker:I had our cold-hearted friend Mister Freeze making it.But he'

发表于:2018-12-28 / 阅读(463) / 评论(0)

小龟乐游记英语短文

英语听力文摘 English Digest 604、声速测量

In the 17th century, the French scientist Pierre Gassendi knew that light traveled faster than sound. When a gun fired far away, he could see the flash of gunshot long before he heard the report. Gassendi tried to measure the speed of sound by clocki

发表于:2018-12-31 / 阅读(137) / 评论(0)

英语听力文摘 English Digest

【英语时差8,16】打嗝……打嗝……为什么我们会打嗝？

Weve all experienced them at one time or another, often right after a big meal. A normal bout of hiccups usually lasts only a few minutes and may contain up to seventy individual hics. Unlike coughing or sneezing which can help clear your airways, hi

发表于:2019-01-22 / 阅读(166) / 评论(0)

英语时差8，16

趣味青春英语电台第233期:Practice what you preach

Idiom: Practice what you preach 言行一致 Hit the book: Audience Circumstance Proceed Resist Channel Suppress 1. If you want to talk (or sing, act, etc.), you have to breathe. And if you want to do these things calmly, you'll need to breathe diaph

发表于:2019-01-22 / 阅读(182) / 评论(0)

趣味青春英语

英闻天下——331 China's Unbalanced Sex Ratio and its Ripple Effect

China's sex ratio is quite worrying nowadays. According to census data, China's sex ratio at birth was 108 males to every 100 females in the early 1980s, only slightly above the natural rate of 103 to 107. In 2000 the ratio was 116.9 males to 100 fem

发表于:2019-02-14 / 阅读(174) / 评论(0)

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