It's ten years since the scientist to discover the valuable chemical.
A. kept up
B. set out
C. took in
D. set about
It's ten years since the scientist to discover the valuable chemical.A. kept upB. set outC
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解决时间 2021-12-22 21:18
- 提问者网友：城市野鹿
- 2021-12-21 23:48
最佳答案
- 五星知识达人网友：老鼠爱大米
- 2021-12-22 00:22
A. kept up(答案→)B. set outC. took inD. set about解析：考查词组：A. kept up维持，不低落B. set out开始，后面接to do，C. took in 欺骗，吸收，理解，D. set about开始，后面接动名词做宾语，和不定式搭配用set out，句意：自从科学家发现有价值的化学物质已经有10年了。选B。
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- 1楼网友：北方的南先生
- 2021-12-22 02:01
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