◎ 题干
—Where are the books about computers,please?
—They are ______.
[     ]
A. on Shelf C    
B. in Shelf A      
C. at Shelf B
◎ 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“—Where are the books about computers,please?—They are ______.[ ]A. on Shelf C B. in Shelf AC. at Shelf B…”主要考查了你对  【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。