第4题: [单项选择]What has created opportunities for computer crimes A. The increased production of computers. B. The skillful operation of computers. C. The increasing number of people using computers. D. The availability of computer networks. 参考答案:D 答案解析:[解析] 本题为细节题,要求考生抓住讲座的细节或事实。如考生听到“Computers and especially computer networks have created opportuniti