胎头矢状缝适应骨盆与骨盆出口前后径一致的动作称为 （）
A.胎头衔接
B.胎头俯屈
C.胎头内旋转
D.胎头仰伸
E.胎头外旋转
参考答案：C
The little daughter has _____ for a long time. Her mother is trying waking her up now.
A．fallen asleep
B．been asleep
C．got to sleep
D．gone to bed
( )是指定义数据的小数位数。
A．数据核算B．数据精度C．数据长度D．数据深度
