单词：selfinfertility
自交不育性
单词：selfinfertility 相关文章
Global Infertility Rates Generally Hold Steady The World Health Organization says infertility rates around the world have remained relatively stable since 1990. Almost 50 million couples worldwide were unable to have a child after five years of tryin
发表于:2019-01-14 / 阅读(42) / 评论(0)
VOA标准英语2012年(十二月)
VOA标准英语2012年(十二月)
英国科学家在男性避孕药研发上有了重大突破，未来男性有可能通过口服阻止精子游动的药丸来达到避孕效果。这可能改变千千万万伴侣的性生活。以后不仅女人可以吃避孕药，连男人都有避
发表于:2019-01-19 / 阅读(72) / 评论(0)
阅读空间
阅读空间
有句谚语这样说，没有消息就是好消息，从一定程度上来说确实是这样，因为如果有消息，谁也不能保证就肯定是好消息对吧.... Kaz: Hello Im Kaz and this is 6 Minute English. With me today is Finn. Hello Fin
发表于:2019-01-23 / 阅读(37) / 评论(0)
一起听英语
一起听英语
DEVELOPMENT REPORT - Infertility in the Developing World By Jill Moss Broadcast: Monday, March 22, 2004 This is Bob Doughty with the VOA Special English Development Report. A man and a woman are consi
发表于:2019-01-30 / 阅读(99) / 评论(0)
农业与发展
农业与发展