◎ 题干
Could you please _______ the radio a bit? It's very loud.
[     ]
A. turn up
B. turn down
C. turn off
D. turn on
◎ 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“Could you please _______ the radio a bit? It's very loud. [ ]A. turn up B. turn down C. turn off D. turn on …”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。