— What were you doing when I phoned you last night?

— I ______ my homework and was starting to surf the Internet.

A．have already finished

B．was finishing

C．was going to finish

D．had just finished

关于深Ⅱ度烧伤的描述，错误的是（）

A.创面疼痛剧烈

B.创面基底湿润，苍白

C.伤及真皮层

D.3～5周愈合

E.愈合后有瘢痕