—Tom’s desk is always clean and tidy.

—Yes, he        his school things every day.

A．puts away

B．puts on

C．puts out

D．puts up

深部脓肿切开排脓的特征是（）

A.局部红肿热痛

B.全身发热，血白细胞增高

C.局部有压痛及水肿

D.局部穿刺有脓液

E.患部运动功能障碍