_____ he has made up his mind to do something, nothing will stop him. [ ]

A. Once

B. Before

C. Although

D. As soon as

下列关于中药材储藏条件的叙述，错误的是（）

A.贮藏不当会造成中药材霉烂、虫蛀、走油等

B.贮藏条件宜高温、高湿、通风为好

C.贮藏条件宜干燥、低温、避光为好

D.贮藏不当会影响中药药理作用及临床疗效

E.贮藏保管对中药质量优劣有影响