信号极性转换(开关)

用Mp3背六级单词071

locomotive startle strife pledge except gross telecomunication plunder adjustable poke testify polarity justification entertainment degradation outrage pop endeavour consistent porcelain avert oxidize metropolitan

发表于:2018-12-01 / 阅读(84) / 评论(0)

用Mp3背六级单词

听一分钟英文：Electricity-电

Electricity is one of the most important inventions ever. It is the thing that powers the Earth. If there was no electricity, wed be back in the dark ages. Few people stop and think just how amazing electricity is. With the flick of a switch, you can

发表于:2018-12-04 / 阅读(47) / 评论(0)

听一分钟英文-E

纯正英语一分钟-Electricity

发表于:2018-12-26 / 阅读(22) / 评论(0)

纯正英语一分钟

【英语语言学习】什么时候该表明立场呢

This summer I was back in Ohio for a family wedding, and when I was there, there was a meet and greet with Anna and Elsa from Frozen. Not the Anna and Elsa from Frozen, as this was not a Disney-sanctioned event. These two entrepreneurs had a business

发表于:2018-12-28 / 阅读(65) / 评论(0)

英语语言学习

英语听力：自然百科地球力场 Earth's Force Field—14

By analyzing different samples of lava, Herrero / Bervera has built up a picture of how the filed has changed since long before humans were around. They are actually the recorders of the Earth's magnetic field in hundreds of years, thousands of years

发表于:2019-01-22 / 阅读(48) / 评论(0)

自然百科2011年

英语词汇分类：铁路英语词汇

elevated railway, overhead railway, aerial railway 高架铁路 mine railway 矿区铁路 funicular (railway) 缆索铁路，登山铁路 light railway line 轻便铁道 urban railway 市区铁路 rai

发表于:2019-02-05 / 阅读(62) / 评论(0)

英文语法词汇

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学英语单词

adenomatous hyperplasia of endometrium

aerophototopography

allocation built-in function