男性,50岁。咯血200ml后突然窒息,应立即采取的措施是().
A.输血
B.吸氧
C.去除呼吸道梗阻
D.静滴呼吸兴奋剂
E.推注垂体后叶素
参考答案:C
The project is based on an agreement, one of _____ purposes is to ensure that the project can be completed before the deadline.
A.whose
B.which
C.its
D.what
活塞式功压机冷却水的冷却方式通常是用循环(闭式)系统。