A、
All phenomena in the universe are the result of the interplay between Yin and Yang.
B、
A few general qualities of Yin are: warm, active, dry, sky, and bright.
C、
Energy and matter are but two states of a continuum, with an infinite possible number of states of aggregation.
D、
Ancient scholars described it in this way: Yin changes into Yang, and Yang changes back into Yin.
喵查答案：
A few general qualities of Yin are: warm, active, dry, sky, and bright.
