题目:Which one is not necessary for the authors before making presentations?
A. Read the program carefully.
B. Locate your session.
C. Take part in other sessions.
D. Be aware of the time and the slot for your presentation.
答案:评论后可见此内容
推荐使用我们的公众号搜索题目,题目更全,检索更方便。支持语音、图片、文字等多种搜索方式。