开放性气胸现场急救哪项正确
A．立即清创
B．给予抗生素
C．迅速封闭伤口
D．吸氧
E．注射破伤风抗毒素
参考答案：C
In relation to the basic legal system of China:
(b) state the disputes that shall be subject to exclusive jurisdiction, including the relevant courts that shall have jurisdiction; (4 marks)
一般的专业承包企业分为（）等级。
A.5个
B.4个
C.3个
D.2个
