钢结构承受静力荷载作用的连接中,其构造简单,节约刚才便于加工的连接方法为下列哪种?()
A.焊接连接
B.高强度螺栓连接
C.铆钉连接
D.普通螺栓连接
参考答案:A
Some children want to challenge themselves by learning a language different from __________their
parents speak at home.[ ]
A. what
B. that
C. which
D. one
对自发性气胸患者的护理措施有()
A.保持呼吸道通畅
B.闭式引流中伤口疼痛,禁用止痛剂,以免影响愈合
C.保持大便通畅,防止大便用力
D.闭式引流中患者呼吸困难加重,应立即报告医生并协助抢救
E.引流术后应观察排气情况