◎ 题干
Einstein once refused to speak on the radio _____ $1,000 a minute. Another time he was seen using a
check _____ $ 1,500 as a bookmark.
[     ]
A. for; of          
B. for; for          
C. at; for            
D. at; at
◎ 答案
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“Einstein once refused to speak on the radio _____ $1,000 a minute. Another time he was seen using acheck _____ $ 1,500 as a bookmark. [ ]A. for; of B. for;…”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。