雅思阅读模拟练习题及答案(5) The search for cures to treat common diseases is not new, nor is it unusual to find the cures for such diseases in tree bark. Aspirin for headaches and quinine for the treatment of malaria are both

雅思阅读模拟练习题及答案(1) In the earliest stages of man's 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

雅思阅读模拟练习题(13) The search for cures to treat common diseases is not new, nor is it unusual to find the cures for such diseases in tree bark. Aspirin for headaches and quinine for the treatment of malaria are both

雅思阅读模拟练习题(17) 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

雅思阅读模拟练习题(19) nternet security experts have long known that simple passwords do not fully defend online bank accounts from determined fraud artists. Now a study suggests that a popular secondary security

雅思阅读模拟练习题(11) Background music may seem harmless, but it can have a powerful effect on those who hear it. Recorded background music first found its way into factories, shop and restaurants in the US