Tom asked his mother to _______ the radio, for it wasn't loud enough and he couldn't hear anything. [ ]

A. turn down        

B. turn up        

C. turn on            

D. turn to

以下不是影响片剂成型的因素是

A．药物的可压性和药物的熔点
B．颗粒的流动性的好坏
C．粘合剂用量的大小
D．润滑剂用量的大小
E．压片时的压力和受压时间