仰卧压胸法两手掌应放在病人的（）.
A、助弓下
B、肩胛下角
C、腰部
参考答案：A
Many parents are always their children with others. That’s sometimes bad for their children.
A. carrying B.comparing C. controlling
发生胎头不均倾的原因有（）
A.骨盆出口平面狭窄
B.骨盆入口前后径狭窄
C.骨盆倾斜度大
D.坐骨棘间径＞10cm
E.坐骨切迹可容2横指
