18、While working in the country, the students ______ a great deal of knowledge on plant life.

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

18、B

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科目：高中英語 來源： 題型：

While working in the country, the students ______ a great deal of knowledge on plant life.

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

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科目：高中英語 來源：志鴻系列訓(xùn)練必修一英語北師版 北師版 題型：014

While working in the country, the students ________ a great deal of knowledge on plant life．

[　　]

A．looked up

B．picked up

C．put up

D．called up

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科目：高中英語 來源：高中課程新學(xué)案　高中三年級、英語 題型：022

用pick up的正確形式填空并推測其含義。

While working in the country, the students ________ a great deal of knowledge on plant life．

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