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Sam ________ some knowledge of the computer just by watching others working on it.
A.brought upB.looked upC.picked upD.set up
C

试题分析:考查动词短语辨析。A抚养,呕吐,提出;B查找;C捡起;用车接;无意中学会;接受信号;康复。恢复;染上…;D建立,成立;句意:Sam通过看别人玩电脑,学会了计算机的知识。根据句意本句的pick up是指无意中学会。故C正确。
点评:动词的短语辨析要根据上下文的语境进行,要把短语的意思和句意相结合。同时也要注意一个短语多种意义的现象,如pick up 捡起;用车接;无意中学会;接受信号;康复。恢复;染上…;
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