51. What does a “multitasker” originally refer to?
A) An operating system capable of doing several tasks at once.
B) A skilled worker executing more than one task at the same time.
C) A sophisticated technology doing several tasks effectively at once.
D) An efficient person able to perform multiple tasks at the same time.
答案&解析
51. A）
第一段第一句指出，多重任务处理者是可以同时有效地处理两项或多项任务的人。但是这并没有说这个概念最初指什么,我们继续往下看，可以发现，第二句给出了答案：这个概念确实源自技术领域，它用来指代可以同时执行多项任务的操作系统。由此可知，选项A正确。其他三项的内容都与原文不符，均可以排除。
↓↓↓↓↓↓↓ 点击下图： 获历年真题↓↓↓↓↓↓↓
