[数] 运筹学问题

考研英语长难句讲解第336期

2000 翻译延伸 1、Under modern conditions, this requires varying measures of centralized control and hence the help of specialized scientists such as economists and operational research experts. 【分析】简单句。under modem conditions为介

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考研英语长难句讲解

北师大版高中英语模块7--Unit 20 lessons2-6

[00:01.28]Dave,I read you. [00:03.89]Open the port bow doors, HAL. [00:05.77]I'm sorry Dave, I'm afraid I can't do that. [00:09.80]What's the problem? [00:11.49]I think you know what the problem [00:12.78]is just as well as I do. [00:15.69]What are y

发表于:2019-01-10 / 阅读(286) / 评论(0)

北师大版高中英语模块7(选修)

VOA慢速英语2013 What Online Teens Consider 'Research'

What Online Teens Consider 'Research' From VOA Learning English, this is the Education Report in Special English. Teachers say the digital age has had a good influence -- and a not-so-good influence -- on this generation of American teenagers. More t

发表于:2019-01-12 / 阅读(59) / 评论(0)

2013年VOA慢速英语(五)月

双语：太空垃圾数量已达“临界点”

The amount of debris orbiting the Earth has reached a tipping point for collisions, which would in turn generate more of the debris that threatens astronauts and satellites, according to a US study released on Thursday。 NASA needs a new strategic p

发表于:2019-01-30 / 阅读(46) / 评论(0)

实用英语

VOA常速英语2007年-Obesity: a Growing Problem in U.S. and Globally

By Paul Sisco Washington 01 November 2007 The World Health Organization reports in its latest study 300 million adults around the world are considered obese, and that it is a problem not only in the industrialized nations but elsewhere as well. At th

发表于:2019-02-04 / 阅读(36) / 评论(0)

VOA常速英语2007年（十一月）

Manned space program's Meridian Project operational

Manned space program's Meridian Project operational BEIJING, Oct. 23 (Xinhua) -- The Meridian Project, a massive scientific research project that will monitor weather in space, became fully operational on Tuesday. The Meridian Space Weather Monitorin

发表于:2019-02-07 / 阅读(67) / 评论(0)

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abandon sb to his fate

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