答案及解析：[单选题]The beginning of a speech serves all of the following purposes except for __________. A establishing - 语言文学类题库- 答案窝(daanwo.com)-大学生作业答案及考资分享平台

问题：

[单选题]The beginning of a speech serves all of the following purposes except for __________.
A establishing your credibility.
B getting the attention and interest of your audience.
C tying up everything and alerts listeners.
D previewing the body of the speech.