确诊前置胎盘，下列哪项首选
A．产后检查胎膜破口距胎盘边缘7cm以内
B． * * 检查
C．B超检查
D．症状
E．体征
参考答案：C
I thought she was African, but ______ she’s Spanish.
A．besides
B．actually
C．on the other hand
D．at all
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