Understanding the genetic code has opened up new avenues for medical research and biotechnology.
"The art of filmmaking is in the details; it's the small things that make a big difference."
最优财政政策要求税率随时间平稳变化,仅对政府支出的永久性变化作出反应。
生活的奔波将一切搅乱,生活就是这样:时热时冷,时紧时松,时而平静时而动荡。