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【单选题】
进入第二产程的标志是
A.
宫缩时产妇向下屏气用力
B.
宫缩频而强
C.
已破膜
D.
胎先露最低点达坐骨棘水平
E.
宫口开全
参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
【单选题】第二篇 Sleep We all know that the normal human daily cycle of activity is of some 7 - 8 hours’ sleep alternating with some 16 - 17 hours’ wakefulness and that, broadly speaking, the sleep n...
A.
people hate the inconvenience of working on night shifts.
B.
your life is disturbed by changing from day to night routines and back.
C.
not all industries work at the same hours.
D.
it is difficult to find a corps of good night workers.