高阶线性微分方程

2006年VOA标准英语-Mexican Border Security Goes High-Tech

By Paul Sisco Washington, DC 29 September 2006 watch Border Security Tech An immigrant captured after illegally crossing the U.S. border with Mexico It's a new approach to the crackdown. With border security and illegal immigration a major concern i

发表于:2018-12-16 / 阅读(79) / 评论(0)

2006年VOA标准英语（九月）

蒋健棠英语广播 Episode96:养宠物的人比不养的健康状况差

1. a little bit,有点,有几分。 eg:Move over this way a little bit. 往这么挪一挪。 2. confusing,令人困惑的，让人容易混淆的。 eg:I see a lot of students stretching and so on, so it is very confusing for me. How do we solve the

发表于:2018-12-18 / 阅读(63) / 评论(0)

蒋健棠教你听英语广播

Comet LINEAR

66 神秘的彗星

发表于:2019-01-30 / 阅读(91) / 评论(0)

科技之光

广交会常用英语口语

品质广交会常用英语口语 1. We have a very strict quality controlling system which promises that goods we produced are always of the best quality. 2. You have got the quality there as well as the style. 3. How do you feel like the quality o

发表于:2019-02-12 / 阅读(56) / 评论(0)

实用英语

销售商务英语场景会话

A: I''m sorry to say that the price you quote is too high. It would be very difficult for us to push any sales if we buy it at this price. B: well, if you take quality into consideration, you won''t think our price is too high. A: Let''s meet each ot

发表于:2019-02-15 / 阅读(73) / 评论(0)

天天商务口语

美语听力 English Cafe 192

Topics: Ask an American: private gun ownership; north of; compulsory versus mandatory versus obligatory; mayday Words: semiautomatic round to ban outlawed to arm social issue law-abiding hunting high heels part of the equation north of compulsory man

发表于:2019-02-23 / 阅读(46) / 评论(0)

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acid digestion analysis

acorn cell

amblyseius herbicolus

american national thread