Rogue theory of smell gets a boost 1. A controversial theory of how we smell, which claims that our fine sense of odour depends on quantum mechanics, has been given the thumbs up by a team of physicists. 2. Calculations by researchers at Un... 详情>>
2018-07-24
1. The failure of a high-profile cholesterol drug has thrown a spotlight on the complicated machinery that regulates cholesterol levels. But many researchers remain confident that drugs to boost levels of good cholesterol are still one of t... 详情>>
2018-07-24
The Triumph of Unreason A. Neoclassical economics is built on the assumption that humans are rational beings who have a clear idea of their best interests and strive to extract maximum benefit (or utility, in economist-speak) from any situa... 详情>>
2018-07-24
Dont wash those fossils! Standard museum practice can wash away DNA. 1. Washing, brushing and varnishing fossils — all standard conservation treatments used by many fossil hunters and museum curators alike — vastly reduces the chances o... 详情>>
2018-07-24
1. A European spacecraft took off today to spearhead the search for another Earth among the stars. 2. The Corot space telescope blasted off aboard a Russian Soyuz rocket from the Baikonur cosmodrome in Kazakhstan shortly after 2.20pm. 3. Co... 详情>>
2018-07-24
Felicity Lawrence Thursday December 28, 2006 The Guardian 1. Consumers are to be presented with two rival new year advertising campaigns as the Food Standards Agency goes public in its battle with the industry over the labelling of unhealth... 详情>>
2018-07-24
雅思听力考场的六个注意事项 下面为大家整理的是雅思听力考场注意事项方面的介绍，主要是针对于雅思听力考场中的发挥情况做的一个对比和分析。在考场上，无论之间的准备有多充... 详情>>
2018-07-23
首先，背听力单词是有一定范围的，众所周知，听力考试是分部分，分题型和分场景来出题的，每次听力考试中，考官在一套听力试题中从十个场景中会考察到2到3个，比如，常考的租... 详情>>
2018-07-23
一、 关系词的定义和分类 关系词，即体现句子之间关系的词或词组。也有不少人称之为信号词，或者是连接词。不管在雅思听说读写四门中的任何一门都需要用到这类词，以使得句子... 详情>>
2018-07-23
第一部分 内容简介 在雅思的听力考试中，相对来说，环境保护这个场景涉及的内容还是比较多的，而且通过对历次考试试题的分析，其涉及的有关于环境保护的知识面也是很广的，可... 详情>>
2018-07-23
