They a small laboratory and devoted every spare moment to this work.A. picked upB. put u

发布时间：2020-08-16 06:01:14

They      a small laboratory and devoted every spare moment to this work.
A. picked up
B. put up
C. set up
D. grew up

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A. picked up
B. put up
(答案→)C. set up
D. grew up
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