Why did a promising heart drug fail? Doomed drug highlights complications of meddling with cholesterol. 1. The failure of a high-profile cholesterol drug has thrown a spotlight on the complicated machinery that regulates cholesterol levels.... 详情>>
2019-02-20
From Economist.com 1 NEELIE KROES, the European Unions competition commissioner, did not mince her words when reporting on Europes energy markets on Wednesday January 10th. Europes energy firms have failed to invest in networks and so custo... 详情>>
2019-02-20
Part I Reading Passage 1 You should spend about 20 minutes on Questions 1-14 which are based on Reading Passage 1 below. Next Year Marks the EUs 50th Anniversary of the Treaty A. After a period of introversion and stunned self-disbelief, co... 详情>>
2019-02-20
①表示举例 a case in point，after all，as an proof，as an illustration，as an example， for example， for instance， in particular， just as， namely， specifically， to illustrate，to demonstrate ②表示增补 additional... 详情>>
2019-02-19
雅思阅读填图题出境频率不高，但也不能忽视。雅思阅读填图题总的出题形式是：根据阅读文章所给出的信息，填补图表内所缺失的内容。其类型有三种，即统计表（Table），原理图（... 详情>>
2019-02-19
雅思阅读生词的另外一种简单得多的办法是应用我们对于词汇的另一条黄金法则，即上下文是关键。雅思考试的特点之一就是，在实际操作中，不必掌握应用于特定文章中的词汇。文章... 详情>>
2019-02-19
In the earliest stages of mans development he had no more need of money than animals have. He was content with very simple forms of shelter, made his own rough tools and weapons and could provide food and clothing for himself and his family... 详情>>
2019-02-13
Selling Digital Music without Copy-protection Makes Sense A.It was uncharacteristically low-key for the industrys greatest showman. But the essay published this week by Steve Jobs, the boss of Apple, on his firms website under the unassumin... 详情>>
2019-02-13
Time to Cool It 让时间冷静下来 1 REFRIGERATORS are the epitome of clunky technology: solid, reliable and just a little bitdull. They have not changed much over the past century, but then they have not needed to. They are based on a r... 详情>>
2019-02-13
辨别正误题型（True / false /not given） 该题型还涉及到：（not given / not mentioned）没有提到，有时还会出现下列提法accurate / inaccurat 精确/不精确；supported / contradicted 一致/不一致。 correct... 详情>>
2019-02-13
