You'd better _____ his name, address and telephone number in your notebook before you forget them.   [      ]

A. puck up    

B. care about    

C. set up    

D. set down

软胶囊囊壁的可塑性和弹性与明胶、增塑剂、水的比例有关，三者的比例通常是1：（0.4～0.6）：1。（）