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【单选题】
胎儿娩出后5分钟,阴道少量流血,外露脐带延长,应判断为A.
胎盘部分剥离
B.
胎盘全部剥离
C.
软产道损伤
D.
胎盘未剥离
E.
已进入第三产程
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A.
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B.
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D.
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【单选题】The two-stroke cycle is completed in ______ strokes of the piston or
A.
____ revolution of the crankshaft.
B.
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D.
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E.
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