Sam _____ some knowledge of the computer just by watching others working on it.
A. brought up B. looked up C. picked up D. set up
Sam _____ some knowledge of the computer just by watching others working on it.
A. brought up B. looked up C. picked up D. set up
C
考查动词短语辨析。句意为：“山姆通过看他人用电脑学会了一些电脑知识。”A项意为“抚养；提及；呕吐”； B项意为“查找；向上看；（生意、情况等）好转”； C项意为“偶然学会，获得；拾起；接受”； D项意为“建立，竖立”；所以，答案为C。