单项选择题
In order to let the audience know the important part of your presentation, you can _____( ).
A、pause for a moment
B、emphasize key words
C、speak in the same voice
D、use some technical methods
In order to let the audience know the important part of your presentation, you can _____( ).
A、pause for a moment
B、emphasize key words
C、speak in the same voice
D、use some technical methods