I have a habit of taking a coffee, which makes me feel _____when I have to stay up late. [      ]

A. adequate          

B. adequate

C. sensitive

D. energetic

蛋白质类药物冻干过程中常加入某些冻干保护剂来改善产品的外观和稳定性如 __________ 、 __________ 、蔗糖、 __________ 、右旋糖酐等。