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【单选题】
有关腹肌、膈肌收缩力的叙述，错误的是（ ）。A.
这两种娩出胎儿和胎盘的重要辅助力量
B.
在第二产配合宫缩时运用腹压最有效
C.
在第一产配合宫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.
在开全之前使用易使产妇疲劳并造成水肿
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【单选题】-He made an apology ________ be blamed ________ what he had done. -It's really wise of him. [ ]
A.
so as to not; of
B.
in order not to; for
C.
as to not so; for
D.
in order not to; of
【单选题】Nobody knew that the reason______ he was often blamed. Perhaps that was______ he made the same mistakes told several times.
A.
which; because
B.
why; because
C.
that; that
D.
why; that
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