以下变化中不属于缓慢氧化的是（ ）
A．橡胶老化
B．动植物的呼吸
C．钢铁生锈
D．红磷燃烧
答案：D
The famous actor often plays _____ his children in the park.[ ]
A. about
B. in
C. at
D. with
