管节及管件的规格、性能应符合国家相关标准规定和设计要求，管节不得有异向弯曲，端口应（）。
参考答案：平整
小题1:Xiang Jingyu was born in______
A. Xupu county B. Huitong county C. Chenxi county
小题2:Which of the following is True?
A. September 14 is Xiang Jingyu’s Birthday
B. Xiang Jingyu joined CPC in 1922.
C. She was killed at the age of thirty.
治疗方法主要是
A．周身抗生素治疗
B．周身支持疗法
C．胸腔闭式引流
D．胸腔穿刺排脓
E．胸腔内注入抗生素
