患者女，26岁。初产妇，妊娠40周，规律宫缩13小时，自然破膜2小时，宫口开大4cm，胎心110次/分，胎心监测频繁出现晚期减速，本例正确处置应是（）

A.急查尿雌激素/肌酐比值

B.吸氧，左侧卧位

C.静注25%葡萄糖液内加维生素C

D.静脉滴注缩宫素，加速产程进展

E.立即行剖宫产术

句式转换。

1. We had eggs and milk for breakfast. (改为一般疑问句) 

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2. There was a beautiful girl in the park. (对画线部分提问)  

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3. David went to the summer camp last week. (改为否定句)   

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4. They usually does homework at home. (用now改写)  

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5. He went for a walk every morning. (对画线部分提问)  

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6. The Japanese woman was 70 years old . (对画线部分提问) 

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