★Suns fickle heart may leave us cold 25 January 2007 From New Scientist Print Edition. Stuart Clark 1.Theres a dimmer switch inside the sun that causes its brightness to rise and fall on timescales of around 100,000 years - exactly the sa... 详情>>
2019-01-21
★Study Finds Web Antifraud Measure Ineffective Published:February 5,2007 New York Times 1.Internet security experts have long known that simple passwords do not fully defend online bank accounts from determined fraud artists.Now a study s... 详情>>
2019-01-21
你睡前都在做什么事呢?看书上网还是玩手机?来看看成功人士们都是怎样安排他们的睡前时间的。 10 Things Most Successful People Do At Night Before Sleep So what do you do at night before you sleep? Do you w... 详情>>
2019-01-21
相由心生，面相是对一个人个性与命运信息的最直接反映。强势的人脸宽，弱势的人脸窄。从脸就能够看得出来一个人的性格，一起来看看隐藏在脸后面的秘密吧! If youre a man who strugg... 详情>>
2019-01-21
阅读段落 Our dead products are static, closed systems. It is always the basic material which constitutes the object and which, in the natural course of things, is worn down and becomes older. Ageing in this case must occur according to... 详情>>
2019-01-21
阅读段落 Every organism has a life span which is highly characteristic. There are striking differences in life span between different species, but within one species the parameter is relatively constant. For example, the average duratio... 详情>>
2019-01-21
阅读段落 What we appreciate, enjoy or marvel at in the works of genius or the achievements of prodigies are the manifestations of skills or abilities which are similar to, but so much superior to, our own. But that their minds are not d... 详情>>
2019-01-08
阅读段落 Pilkington built a pilot plant in 1953 and by 1955 he had convinced his company to build a full-scale plant. However, it took 14 months of non-stop production, costing the company ￡100,000 a month, before the plant produced a... 详情>>
2019-01-08
阅读段落 Rudimentary air traffic control (ATC) existed well before the Grand Canyon disaster. As early as the 1920s, the earliest air traffic controllers manually guided aircraft in the vicinity of the airports, using lights and flags,... 详情>>
2019-01-08
1. 表转折： but, however, yet, in fact, on the other hand; A, but B: 否定A而肯定B，则A，B两部分内容是相反的。 例如：Computerized data storage and electronic mail were to have heralded the paper less office. But, con... 详情>>
2019-01-07
