In a Q and A session, “Perhaps I didn’t really make my question clearly. In fact what I asked was …” is an example of ________.
A. introducing oneself
B. signaling your intention of asking a question
C. complimenting on the speaker’s presentation
D. clarifying question
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Mentioning confirmed keynote speakers in a conference notice will attract more professionals to the event.
按照研究对象划分______ 、______ 、______ 、______ 、______ 。
______ 和______ 将美国大众传播研究的历史大致分为三个时期:______ 。
______ 认为,欧洲的大众传播实证研究开始于______ ,即______ 发表了______ 之后。