46. Compared with human memory, machines can ________.
- A. identify human faces more efficiently
- B. tell a friend from a mere acquaintance
- C. store an unlimited number of human faces
- D. perceive images invisible to the human eye
答案：A
答案句：Machines aren't limited this way. Give the right computer a massive database of faces, and it can process what it sees-then recognize a face it's told to find-with remarkable speed and precision.
参考译文：机器不会这样受限。给合适的计算机一个庞大的人脸数据库，它就能处理它所看到的——然后以惊人的速度和精度识别出它被要求找到的人脸。
定位线索：题干“Compared with human memory”→答案句“Machines aren't limited this way”（机器不受人类记忆限制）；文中“with remarkable speed and precision”对应选项A“more efficiently”（更高效）。
解析：题干问机器与人类记忆相比的优势，答案句明确指出机器不受人类记忆限制，能以惊人速度和精度识别人脸，这正是选项A“identify human faces more efficiently”的同义转述。选项B“tell a friend from a mere acquaintance”原文未提及，选项C“store an unlimited number of human faces”过度绝对，选项D“perceive images invisible to the human eye”无中生有。