We thought of selling this old furniture, but we've decided to _____ it, It might be valuable.

[      ]

A. hold on to

B. keep up with

C. turn to

D. look after

败毒散中，能扶助正气以驱邪外出，散中有补，不致耗伤真元的药是

A．柴胡、前胡
B．羌活、独活
C．川芎、枳壳
D．人参
E．甘草