The nurse is developing a teaching plan for a client diagnosed with osteoarthritis. To minimize injury to the osteoarthritic client, the nurse should instruct the client to （）.

A．install safety devices in his home.

B．wear comfortable shoes.

C．get help when lifting objects.

D．wear protective devices when exercising.

肺主气，主要取决于（）

A.生成宗气

B.宣发卫气

C.调节全身气机

D.肺的呼吸功能

E.肺气通于天