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【单选题】
23岁，初产妇，妊娠39临产破水7小时入院。查体：腹围97cm，30cm，LOA，胎心率140次／分。肛查：开大3cm，宫缩间歇时有血性羊水流出。6小时后阴道出血较多，胎心音变慢不规律，经积极治疗，2小时后分娩出一男婴，苍白窒息，经抢救无效死亡此患者的临床诊断主要根据的是下列哪一项（）A.
产前诊断通过阴道检查来确诊
B.
取阴道血涂片找到有核红细胞或幼红细胞
C.
脐血流图
D.
彩色超声多普勒
E.
B超检查
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A.
可以获取本网段所有数据包
B.
只能获取源地址或者目的地址为本机的数据包、广播包、与自己有关的组播报
C.
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A.
They are trying their best to fight for gender equality in their work.
B.
They are less vocative of their sexual orientation than men.
C.
Their working environment gives little tolerance to homosexual people.
D.
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A.
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B.
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C.
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D.
The weather.
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