当负载F为零时,系统压力为();负载F增加时.压力也随之增高.
参考答案:零
The old man is badly hurt, we must send him to hospital _______. [ ]
A. as soon as possible,
B. as possible as we can
C. as quick as possible
D. so quick
27岁经产妇,妊娠37周,今晨起床时发现 * * 流血,量中等,无明显腹痛,无明显宫缩,于上午9时来院就诊
处理时与本例无直接关系的项目是()
A.扩张宫颈
B.给予子宫收缩药
C.人工破膜
D.产钳助娩
E.剖宫产