【单选题】You should hold your business card in bath hands when presenting it. ________
【多选题】在教学过程中,下面动作运用重心变化法进行示范面转换的有_____。
【单选题】Do you think you must make it clear when presenting ideas from another source in your own article?
A.
Yes, because it is a must to give proper credit to one’s sources.
B.
No, because one can use anything at his proposal once it goes public.
【判断题】You should hold your business card in both hands when presenting it.
【判断题】When presenting, you should show enthusiasm for your topic or creation.