40 Cohesion-tension Theory Atmospheric pressure can support a column of water up to 10 meters high. But plants can move water much higher; the sequoia tree can pump water to its very top more than 100 meters above the ground. Until the end of the ni

发表于:2018-11-28 / 阅读(273) / 评论(0) 分类 新概念优美背诵短文50篇

Atmospheric pressure can support a column of water up to 10 meters high. But plants can move water much higher; the sequoia tree can pump water to its very top more than 100 meters above the ground. U

发表于:2018-12-15 / 阅读(162) / 评论(0) 分类 新东方背诵文选

Atmospheric pressure can support a column of water up to 10 meters high. But plants can move water much higher; the sequoia tree can pump water to its very top more than 100 meters above the ground. Until the end of the nineteenth century, the moveme

发表于:2018-12-30 / 阅读(74) / 评论(0) 分类 考研背诵50篇

Cohesion-tension Theory Atmospheric pressure can support a column of water up to 10 meters high. But plants can move water much higher; the sequoia tree can pump water to its very top more than 100 meters above the ground. Until the end of the ninete

发表于:2019-01-08 / 阅读(47) / 评论(0) 分类 英语小短文

By Phil Mercer Sydney 18 September 2009 Australia is revising controversial citizenship tests, to make sure applicants are more aware of their rights and responsibilities rather than examine their general knowledge about sports and culture. The gove

发表于:2019-01-13 / 阅读(31) / 评论(0) 分类 VOA标准英语2009年(九月)

By Phil Mercer Sydney 02 October 2007 Australian refugee groups have criticized tests that require people to answer questions about the nation's history and culture to qualify to become a citizen. Critics believe the new measures will discriminate ag

发表于:2019-01-16 / 阅读(47) / 评论(0) 分类 2007年VOA常速英语(十月)