单选题：听音频，回答以下问题。What are the speakers doing as the conversation

题目分类：公共英语三级
题目类型：单选题
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题目内容：

听音频，回答以下问题。
What are the speakers doing as the conversation begins? A．Looking at some photographs．
B．Selling cameras．
C．Teaching a photography class．
D．Repairing camera equipment．

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