海军应用科学实验室

Space Digest

04 美国的航空航天技术 DATE=2-21-01 TITLE=EXPLORATIONS #1940 - Space Digest BYLINE=Paul Thompson VOICE ONE: This is Steve Ember. VOICE TWO: And this is Shirley Griffith with the VOA Special En

发表于:2018-12-07 / 阅读(44) / 评论(0)

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EDUCATION REPORT - Foreign Student Series 25: M.I.T.

EDUCATION REPORT - Foreign Student Series #25: M.I.T. By Nancy Steinbach Broadcast: Thursday, February 17, 2005 I'm Gwen Outen with the VOA Special English Education Report. Today we answer a question

发表于:2018-12-07 / 阅读(22) / 评论(0)

教育与新闻

SCIENCE REPORT - Bird Brains

SCIENCE REPORT – March 6, 2002: Bird Brains By George Grow This is the VOA Special English Science Report. American scientists have found that some birds are more intelligent than experts had believ

发表于:2019-01-02 / 阅读(54) / 评论(0)

科技之光

SSS 2009-01-19

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. A new study with worms shows that some have a gene that helps them stave off infections. Not through some kind of biochemistrybut by changing their behav

发表于:2019-01-08 / 阅读(55) / 评论(0)

Scientific American(一)月

VOA慢速英语2014 AS IT IS 2014-03-08 Students Get Hands-on with Science at Smithsonian

AS IT IS 2014-03-08 Students Get Hands-on with Science at Smithsonian Hello and welcome to As It Is from VOA Learning English! Im Faith Lapidus in Washington. Do you think learning to play a musical instrument makes a child more intelligent? The answ

发表于:2019-01-12 / 阅读(31) / 评论(0)

2014年VOA慢速英语(三)月

Vitamin C and DNA

67 维生素C能否破坏DNA？ DATE=7-11-01 TITLE=SCIENCE REPORT - Vitamin C and DNA BYLINE=Nancy Steinbach (Start at 59

发表于:2019-01-30 / 阅读(66) / 评论(0)

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学英语单词

A word spoken is past recalling.

acicular iron

active low structure black

anallachrom

anti-impotence drug

Assmann's infiltrate

at the two and four nucleate stages

automatic load sharing

aylard

barium bisulfite

bent-bar