n. 铜壁关凤仙花

SSS 2009-11-20

We humans are known to help out members of our own families. When it comes to business we call it nepotism. Now plants have demonstrated the same predilection, in a study published in the American Journal of Botany. Previous research showed that plan

发表于:2018-12-24 / 阅读(88) / 评论(0)

Scientific American(十一)月

北京小学英语第六册15

[00:35.84]LESSON ONE [00:38.84]Dialogue 1 [00:41.93]What would you like? [00:45.40]A:Let's get something to eat for tomorrow's picnic. [00:51.70]B:All right. [00:53.79]A:Shall we go to the Mall at Dong Dan? [00:58.98]B:That's a nice place for shoppin

发表于:2019-01-09 / 阅读(82) / 评论(0)

小学英语北京版

Italy lacks energy for economic revamp

ROME, Dec. 3 (Xinhua) -- Italy lacks the necessary energy(能量,活力) and strength for an economic revival while unemployment and poverty are on the rise, warned a report issued Friday. The 44th edition of the Censis think tank social survey, the

发表于:2019-01-19 / 阅读(87) / 评论(0)

英语新闻

2018年CRI Tongling: a copper city's now and past

The Streaming down the Yangtze team has arrived in the city of Tongling, Anhui Province. Owing to its copper deposits, it was an important center in ancient China for bronze production. The scale of the copper industry has gradually increased and it

发表于:2019-01-19 / 阅读(64) / 评论(0)

2018CRI中国国际广播电台

60秒科学:Plants Share Light If Neighbor Is Related

Plants Share Light If Neighbor Is Related A study in the American Journal of Botany finds that plants can tell if they're next to a relative and will grow to allow the kin more access to light. Cynthia Graber reports. We humans are known to help out

发表于:2019-01-30 / 阅读(98) / 评论(0)

60秒科学

万物简史第509期:丰富多彩的生命(5)

You might not think there would be that many people in the world prepared to devote lifetimes to the study of something so inescapably low key, 你或许会认为，世界上不会有多少人愿意花毕生的心血来研究那个不起眼儿的东西

发表于:2019-02-21 / 阅读(78) / 评论(0)

万物简史

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