The nurse is caring for a client who complains of lower back pain. Which instructions should the nurse give to this client to prevent back injury（）

A. Bend over the object you’re lifting.

B. Narrow the stance when lifting.

C. Push or puI1 an object using your arms.

D. Stand close to the object you’re lifting.

控制钩端螺旋体病暴发流行的关键预防措施是（）

A.隔离患者

B.田间灭鼠

C.管理好猪粪

D.注射钩体疫苗

E.做好个人防护，不要直接和疫土、疫水接触