◎ 题干
Yuan Longping _____ an idea for a hybrid rice in the 1960s.  
[     ]
A. caught up with        
B. fell behind
C. came up with        
D. put up with
◎ 答案
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◎ 解析
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◎ 知识点
    根据魔方格专家分析,试题“Yuan Longping _____an idea for a hybrid rice in the 1960s.[ ]A. caught up withB. fell behindC. came up with D. put up with…”主要考查了你对  【动词短语】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。