代谢能
参考答案：摄入单位饲料的总能与由粪、尿及其他排泄物所排出的能量之差
If the wind doesn't _____ before three o'clock, we won't be able to take off today. [ ]
A. go up
B. go down
C. go off
D. go by
蛋白糖基化
