戏剧的四要素中，（）是最重要的因素，因为它是戏剧塑造舞台形象的核心
参考答案：表演
According to some scientist , every human being, _____, gives off body heat.
A．what he is doing
B．however he is doing
C．whatever is he doing
D．no matter what he is doing
面角恒等定律：
