对于颌面部损伤病员若不及时处理，会马上造成生命危险的主要原因是()
A．出血
B．感染
C．休克
D．窒息
E．弥散性血管内凝血
参考答案：D
We _____ the room for the party. [ ]
A. need clean
B. needn't to clean
C. don't need clean
D. don't need to clean
如何调定SE卷烟机烟枪上的前盖轨？
