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【单选题】
关于临产后子宫收缩力的叙述错误的是A.
有使逐渐开大、胎先露逐渐下降的作用
B.
宫缩时平滑肌纤维缩短变宽，收缩后肌纤维比原来变短变粗
C.
宫缩达高峰时，隆起变硬
D.
子宫下段收缩力最强最持久
E.
正常宫缩起自两侧部，以微波形式扩展至整个子宫
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【单选题】Rich Kids{Page} Life really should be one long journey of joy for children horn with a world of wealth at their feet. Internationally famous child doctor Robert Coles is the world's top expert on the ...
A.
there are fewer problems in the rich family than the poor family.
B.
rich children live a life of separation from the world．
C.
rich children usually enjoy more love than poor children,
D.
the quality of rich children's family life may not be high.
【单选题】The new house really wasn't _____ all the expense involved. [ ]
A.
worthy
B.
worthwhile
C.
worth of
D.
worth
【简答题】下图显示该闭塞分区内的信号机是_________亮。说明该闭塞分区内_______车占用。
【单选题】We really appreciate our wo ki ng environment, in there was open, friendly workplace communication.
A.
how
B.
what
C.
whom
D.
which
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