◎ 题干
Having walked for long, he decided to lean        the big tree for a short break.
[    ]
A. against        
B. on            
C. under      
D. beyond
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“Having walked for long, he decided to leanthe big tree for a short break.[ ]A. againstB. onC. under D. beyond…”主要考查了你对  【介词和介词短语】  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。