双极型电晶体开关；双载子电晶体开关

SSS 2010-05-19

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This'll just take a minute. Want to feed a hungry world? According to David Gracer, add bugs to the menu. Gracer is, he says, a normal guy whos also an entomophagist, an advocate fo

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Scientific American(五)月

想聊就聊-4.01.2办签证

Excuse me, I'd like to apply for an immigrant visa. And which category you intend to apply? Oh, my son is a American citizen. We want to live together in the future. So, that's the family reunification.

发表于:2018-12-26 / 阅读(42) / 评论(0)

想聊就聊

VOA标准英语2010年-Country Music Well Represented With Gr

The 52nd annual Grammy Awards will be presented on January 31 in Los Angeles, California. The Zac Brown Band received three Grammy Award nominations, including Best Country Performance by a Duo or Group With Vocals for its 2008 Number One debut singl

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VOA标准英语2010年(一月)

美国国家公共电台 NPR Some Survivors Of Category 5 Hurricane Irma Want A Category 6

LULU GARCIA-NAVARRO, HOST: Last year, hurricanes devastated Puerto Rico, parts of Florida and Houston. Scientists now say there's evidence hurricanes are getting stronger because of climate change. A new study from the National Center for Atmospheric

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2018年NPR美国国家公共电台6月

谁将问鼎奥斯卡？

The biggest surprise this morning was Crash. I think a lot of people love this movie, but no one was quite sure it would go this far and get,you know best picture nomination and the best ~ur the actin

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访谈录

各种花样的风筝怎么说？

9月16日是墨西哥馆日，墨西哥馆五颜六色的风筝森林吸引了不少人的眼球，你知道小小的风筝里有什么大学问吗？其实风筝也有很多种分类哦，一起来看看吧。说到kite这个单词，这也许是我们

发表于:2019-02-18 / 阅读(102) / 评论(0)

英语口语

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学英语单词

abusious

accostment

adjustable track trailer

adverb group

amylase-creatinine clearance ratio

Apop

argol

auxiliary accessory

bactrocera (zeugodacus) okunii

base voltage

Bashkortostanis