20.When you visit a museum you must ask for _____ before taking photographs inside it.(  )
A.promiseB.permissionC.considerationD.support

分析 當(dāng)你參觀博物館時,在里面拍照之前你必須尋求許可.

解答 答案是B.考查名詞的辨析.A 許諾;B 許可;C 考慮;D 支持.句意是"當(dāng)你參觀博物館時,在里面拍照之前你必須尋求許可."故選B.

點(diǎn)評 解答此類問題首先需要理解每個單詞的基本含義,并注意交叉含義間的區(qū)別,了解其特殊用法及習(xí)慣搭配等特點(diǎn),然后結(jié)合語境選擇正確答案.

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