问题
选择题
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
答案
答案：C
搜题请搜索小程序“爱下问搜题”
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
答案：C