----I hear that Tom was badly injured in a car accident and is in hospital now.

-----_________, let’s pay a visit to him.

A．If any

B．If so

C．When possible

D．When necessary

较适合胸、腹部伤口包扎的急救材料是()

A．纱布

B．四头带

C．绷带

D．三角巾

E．伤员衣裤撕成的布条