解释：药物之间有阴阳、子母、兄弟等配对关系，说明药物配伍的原理。

A director must be a policeman, a midwife, a psychoanalyst, a sycophant and a bastard.

The best solutions are often the simplest ones.

I always felt that my greatest asset was not my physical ability, it was my mental ability.

科学中最重要的事情不是正确，而是保持好奇心。

中国半导体产业要有信心，但也要清醒认识到差距。