开放性气胸急救处理原则是
A．立即剖胸探查
B．清创缝合术
C．迅速封闭胸壁创口
D．输血抗休克
E．呼吸机辅助呼吸
参考答案：C
— That's the third time he's won the award in this field.
— Yes. He ________ his maximum potential in the past decade. [ ]
A. explored
B. is exploring
C. has been exploring
D. has explored
