题目

Choose the one that fits best according to the informationgiven in the passage you have read.What will people die of 100 years from now? If you think that is asimple question, you have not been paying attention to the revolution that istaking place in bio-­technology (生物技术). With the help of new medicine, the human body will last a verylong time. Death will come mainly from accidents, murder and war. Today'sleading killers, such as heart disease, cancer, and aging itself, will becomedistant memories.In discussion of technological changes, the Internet gets most ofthe attention these d材料是时代进步的重要标志，有机合成材料的出现更是材料发展史上的一次重大突破．下面有关材料说法正确的是（ ）A．合金、合成纤维都是有机合成材料B．水泥、玻璃钢、汽车轮胎都是常见的复合材料C．合成材料的大量使用给人类带来了严重污染，所以要禁止生产和使用D．开发使用可降解塑料能有效解决“白色污染”问题