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举一反三
【单选题】有关腹肌、膈肌收缩力的叙述，错误的是
A.
这两种力是娩出胎儿和胎盘的重要辅助力量
B.
在第二产程末配合宫缩时运用腹压最有效
C.
在第一产程末配合官缩时运用腹压最有效
D.
宫缩时胎先露压迫盆底组织，反射性引起产妇屏气动作
E.
在宫口开全之前使用易使产妇疲劳并造成宫颈水肿
【单选题】People who do sleep research tell us that a person is a sort of "information processor." We have two ways to use the information we get each day. The first process is used when we are awake. It takes...
A.
people are likely to sleepwalk
B.
people become mentally active
C.
people often wake up
D.
people might do odd things
【单选题】子宫收缩力异常指的是
A.
节律性、极性、强度均不正常
B.
节律性、对称性正常但失去正常强度
C.
对称性、极性正常，节律性异常
D.
节律性正常，对称性和极性异常
E.
节律性、对称性、极性及宫缩的频率和强度均异常