中级

单选题回答听力材料第(16)题。

参考答案:F进入在线模考
Man: Before we begin, I've been asked to tell you that Dr. Newman has been delayed. That means he won't make it in time for his presentation on Dealing with Complaints". Unfortunately, we have to cancel the session for the moment and anyone who signed up for it should now choose between the other two sessions which are running at the same time in the afternoon. Thank you. And now, I'll hand you over to Margaret.