2022年考博英语-电子科技大学考试题库及全真模拟冲刺卷16（附答案带详解）
2022年考博英语-电子科技大学考试题库及全真模拟冲刺卷（附答案带详解）1. 单选题 ） the afternoon. 问题1选项 A.regained B.recovered C.re
2022年考博英语-电子科技大学考试题库及全真模拟冲刺卷（附答案带详解） 1. 单选题 ） the afternoon. 问题1选项 A.regained B.recovered C.restored D.revived 【答案】A 【解析】句意:股票交易市场上的股票在早上大幅下跌，但在下午却小幅上涨。 考查动词辨析。四个选项均为对应动词的过去式。regain 恢复,收回（不及物动 词）上涨；recover 恢复,弥补,重新获得；restore 恢复,还原;revive 复兴,苏醒,恢 复精祌。根据前面句意以及表转折的but可知A符合句意。 2. 单选题 Thousands of years ago man used handy rocks for his surgical operations. Later he used sharp bone or horn, metal knives and more recently, rubber and plastic and that was where we stuck, in surgical instrument terms, for many years. In the 1960s anew tool was developed, one which was, first of all, to be of great practical use to the armed forces and industry, but which was also, in time, to revolutionize the art and science of surgery. The tool is the laser and it is being used by more and more surgeons all over the world, for avery large number of different complaints. The word laser means: light amplification by stimulated emission of radiation. As we all know, light is hot; any source of light—from the
