截齿
参考答案:截齿是安装于螺旋滚筒上的用来直接破碎煤的刀具。
首选的紧急处理是
A.立即吸氧
B.迅速建立静脉输液通路
C.气管切开
D.无痛下清创
E.及时使用抗生素
Progress so far has been very good. ______, we are sure that the project will be completed on time.
A.However
B.Otherwise
C.Therefore
D.Besides