— I was told to be here before 6:00 p.m. 

— Oh, you           . I felt sorry for            you that we've changed the plan. [ ]

A. can't; not telling

B. needn't; not telling

C. can't; not to tell

D. needn't; not tell

于先生，建筑工人，左下肢外伤后未得到及时、正确的处理而导致感染破伤风梭菌。为该患者更换敷料后，污染敷料的处理方法是（）。

A.高压灭菌后再清洗

B.过氧乙酸浸泡后清洗

C.送焚烧炉焚烧

D.丢人污物桶后再集中处理

E.在日光下曝晒后再清洗