问题
选择题
While working in the countryside , the students ________ a great deal of knowledge on plant life.
A.looked up
B.picked up
C.put up
D.called up
答案
答案:B
考查短语辨析。句意“在乡下工作时,学生们学到了很多关于植物的知识。”A“查找”;B“捡起,用车接某人,偶然学会”;C“进行,张贴”;D“打电话,召集,使想起”。故选B。