（ ）are cut into thin flakes or grated before they can be used in preparations or taken directly. A. Shuiniujiao (Bubali Cornu) B. Chuanbeimu (Fritillariae Cirrhosae Bulbus) C. Lingyangjiao (Saigae Tataricae Cornu) D. Rougui (Cinnamomi Cortex)