生殖分布

试管婴儿有风险吗？

In the 24 years since the birth of Louise Brown，the world's first test－tube baby，thousands of would－be parents have been assure that as far as scientists knew there was no extra risk of genetic damage associated with in－vitro fertilization，

发表于:2018-12-05 / 阅读(40) / 评论(0)

有声杂志阅读

SSS 2010-02-23

Its long been known that nutrient-rich dust from Africa floats across the Atlantic to the Amazon. And its assumed that the dust fertilizes the rainforest. Oliver Chadwick from the University of California, Santa Barbara, says that Hawaii can also tha

发表于:2018-12-24 / 阅读(49) / 评论(0)

Scientific American(二)月

美国英语听力80篇2 Lesson28

[00:05.30]Seven environmental activists from all over the world have received this year's Goldman Environmental Prize. [00:15.39]The winners were awarded 125,000 dollars each by the Goldman Environmental Foundation. [00:24.24]The awards were announce

发表于:2018-12-26 / 阅读(80) / 评论(0)

美国英语听力80篇

经济学人音频版 Unit19:United States-Reproductive ethics

发表于:2018-12-31 / 阅读(102) / 评论(0)

经济学人音频版

Mare Reproductive Loss Syndrome

55 肯塔基州的母马不育症 DATE=6-7-01 TITLE=SCIENCE REPORT - Mare Reproductive Loss Syndrome BYLINE=George Grow (Start at 59

发表于:2019-01-30 / 阅读(87) / 评论(0)

科技之光

DEVELOPMENT REPORT - Reproductive

DEVELOPMENT REPORT – July 1, 2002: Reproductive Health Report 28 Jun 2002, 21:24 UTC This is the VOA Special English Development Report. A new report has been released about sexual and reproductive

发表于:2019-01-30 / 阅读(65) / 评论(0)

农业与发展

China unveils reform guidelines on income distribution

BEIJING, Feb. 5 (Xinhua) -- China on Tuesday unveiled reform guidelines on income distribution amid growing public concerns over a widening wealth gap. The guidelines encourage further work to improve the initial distribution system and stepped-up ef

发表于:2019-02-03 / 阅读(73) / 评论(0)

英语新闻

2007年VOA标准英语-UN: Difficulty of Aid Distribution in Peru Easi

By Lisa Schlein Geneva 21 August 2007 United Nations aid agencies say the distribution of humanitarian assistance to victims of Peru's devastating earthquake remains problematic. But they say the situation is beginning to ease. Lisa Schlein reports f

发表于:2019-02-03 / 阅读(146) / 评论(0)

2007年VOA标准英语（八月）

China to boost distribution industry

BEIJING, July 11 (Xinhua) -- The State Council, or China's Cabinet, announced on Wednesday that it will boost the development of the nation's distribution industry with the goal of establishing a modern goods distribution system that is efficient, co

发表于:2019-02-08 / 阅读(85) / 评论(0)

英语新闻

10 Worst States To Be a Woman

10 Worst States To Be a Woman State Republicans have introduced nearly 1,000 laws restricting women's reproductive health access. Here are 10 of the worst states to be a woman between puberty and menopause. In a time of war and record unemployment, t

发表于:2019-02-18 / 阅读(234) / 评论(0)

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