答案及解析：[多选题]A keynote speech ______________. Ashould capture the central theme of the conference Bis usually giv - 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：

[多选题]A keynote speech ______________.
Ashould capture the central theme of the conference
Bis usually given by well-known experts in a particular field
Cis usually given in parallel session
Dis usually one of the highlights of a conference