The computer ______. Engineers have worked on computers for ______.

admin2009-09-17  32

问题 The computer ______.
Engineers have worked on computers for ______.

选项 A、about a whole century
B、more than twenty-five years
C、over three months

答案B

解析 根据本文“for a quarter of a century”可知工程师们在大约25年前已经研制出了越来越好的计算机。
转载请注明原文地址:https://jikaoti.com/ti/nj9sFFFM
0

随机试题
最新回复(0)