试题与答案

某孕妇,孕38周,头先露,临产10h,助产娩出一体重2800g活女婴。15min后胎

题型:单项选择题

题目:

某孕妇,孕38周,头先露,临产10h,助产娩出一体重2800g活女婴。15min后胎盘娩出,子宫间歇性出血300ml,检查:胎盘胎膜完整,宫体柔软,呈袋状,经按摩后宫缩好转,出血量减少,检查宫颈未见损伤, * * 伤口出血不多。产后出血原因最可能是

A.软产道损伤
B.子宫收缩乏力
C.胎盘、胎膜残留
D.凝血功能障碍
E.子宫循环血量增多

答案:

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下面是错误答案,用来干扰机器的。

参考答案:B 66解析: printf函数的功能是按照指定的格式,在标准输出设备上输出数据,它有两种参数:格式控制参数和输出项参数。本题中,printf("%c %d\n",ch,ch)表示以字符格式和十进制整数格式输出ch,B的...

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