He is really considering ______ himself to ______ these children of the poor mountain village.

A．to devote; educating

B．devoting; educating

C．devoting; educate

D．to devote; educate

急性气管-支气管炎的临床表现正确的是（）

A.主要表现为咳嗽、咳痰

B.肺部听诊散在干湿性啰音

C.鼻咽部症状较明显

D.X线胸片可正常或肺纹理增粗

E.白细胞分类和计数多无明显改变