题目内容：
- May I speak to Dr. Brown? - _________
A. Yes, he is not in at the moment. B. No, you can't. C. Yes, this is Brown speaking. D. Sorry, speaking
参考答案：
答案解析：
选择题：- May I speak to Dr. Brown?- _________A. Yes, he is not in at the moment. B. N
- 题目分类： 大学英语B级
- 题目类型：选择题
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