【題目】While working in the country, the students ______ a lot of knowledge about plant.

A. looked up B. picked up C. put up D. called up

【答案】B

【解析】

試題分析：學生們在這個國家工作期間，學習了很多的關(guān)于植物的知識。pick up 有偶然學會的意思。look up是查找的意思，put up 是豎起，張貼的意思；call up是打電話，使回憶的意思。故答案選B.

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