单项选择题

A.应尽量于外伤后6~8h内清创
B.应尽量于外伤后12~14h内清创
C.应尽量于外伤后12~24h内清创
D.应尽量于外伤后24~36h内清创
E.应尽量于外伤后36~48h内清创