efficiency expert是什么意思

expert是什么意思? expert consultant是什么意思 halr Expert是什么意思 high efficiency HAIR EXPERT memory expert in high efficiency还是at high efficiency 英语翻译a great financial expert是什么意思.我想也没必要拿两分就走吧? 英语翻译these are two concepts of efficiency:efficiency in obtai market efficiency hypothesis和capital market efficiency的区别是? 请问Production efficiency 和 Allocative efficiency之间的关系 求cost efficiency的翻译