[水利] 水利综合开发

Weakening Chilean Economy to Test Bachelet's Social Reform Plans 智利疲软经济考验巴切莱特总统社会改革计划 MIAMI Chilean President Michelle Bachelet took office in March with a pledge to make Chile a different and fairer country. B

发表于:2018-12-16 / 阅读(40) / 评论(0) 分类 VOA标准英语2014年(四月)

考试日期: 2013 年 3 月 2 日 Reading Passage 1 Title: New Energy in USA Question types: True/False/Not Given; Flow Chart; Short Answer Questions 文章内容回顾 美国的一种新能源,关于从玉米中提取乙醇为燃料。 20060708旧

发表于:2019-01-08 / 阅读(102) / 评论(0) 分类 雅思机经

AUDIE CORNISH, HOST: The BP disaster in the Gulf of Mexico seven years ago showed just how hard it is to combat a massive oil spill. Cleaning oil from water is a challenge, especially on the open sea. Now the federal government is backing research on

发表于:2019-01-16 / 阅读(38) / 评论(0) 分类 2017年NPR美国国家公共电台3月

Protamine sulfate is a drug that reverses the anticoagulant effects of liver compounds such as heparin. Protamine is extracted from the sperm of salmon and other species of fish, and then made into a protamine sulfate injection which is a necessary d

发表于:2019-01-19 / 阅读(66) / 评论(0) 分类 世界各地新闻集锦

We keep pumping carbon dioxide into the atmosphere and the earth keeps warming. Climate scientists have predicted that the consequences of unchecked warming could result in everything from catastrophic flooding to larger and more deadly hurricanes. S

发表于:2019-02-23 / 阅读(50) / 评论(0) 分类 英语时差8,16

First off, I'll mention that at the bottom of the sea there exist veins of zinc, iron, silver, and gold whose mining would quite certainly be feasible. 首先,我对您说,海底有锌、铁、银、金等矿藏,开发并不是不可能的事。

发表于:2019-02-25 / 阅读(119) / 评论(0) 分类 《海底两万里》中英双语有声读物