演讲前准备什么？（）

A、Youwillfeelmoreconfidentandlessnervousifyouarewellprepared.Doyourresearch.Don’t‘wingit’.
B、Plancarefullywithyourteamandresearchyourmainideas.Askyourteammembersforhelpifyouneedto.
C、Writeyourspeechoutinfullandreaditseveraltimes.Thiswillgiveyouconfidencebecauseyouknowthecontent.
D、Practiceyourperformancebeforetherealthing.Practicewithyourvisualaidssothatyouknowthatyouare100%prepared.
E、Beconfident.Youknowmoreaboutthetopicthananybodyelseintheroomsobeproudofwhatyoucanknow.