A child with rheumatic fever complains of painful joints. What nonpharmacologic measures should the nurse use to reduce the child’s pain

A. Performing gentle passive range-of-motion (ROM) exercises.
B. Gently massaging the painful joints.
C. Using a bed cradle to keep linens off the joints.
D. Encouraging position changes in bed every 2 hours.

书法当中的“瘦金体”由北宋皇帝______所创。