中年男性患者，被木棒击伤左前臂1小时，入院检查发现前臂中部明显畸形，肿胀，有反常活动及骨擦感，X线片发现左侧尺桡骨中段骨折，在臂丛麻醉下行骨折复位开放内固定手术。

术后处理正确的是（）

A.患肢低垂

B.肘关节伸直

C.前臂旋前

D.前臂中立位

E.前臂旋后位

Every student as well as teachers who ______ to visit the museum ______ asked to be at the school gate on time.

A．is; is

B．are; are

C．is; are

D．are; is