出口观赏鱼饲养场/中转包装场注册登记有效期为5年。（）
参考答案：对
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.
用户发生下列（）用电事故，应及时向供电企业报告。
A.人身触电死亡
B.电气火灾
C.违章操作
D.专线掉闸或全厂停电
