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【单选题】
女性26岁，停经7个月，昨晚胎动频繁，今自觉胎动消失4小时，应作何种检查对诊断最有价值
A.
测定染色体
B.
B超
C.
四步触诊
D.
多普勒
E.
数胎动
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using the simplex solution method
B.
analyzing currently known probabilities
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statistical sampling
D.
the minimal spanning tree
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None of the above
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0 50 50 1 14 64 2 36 100 3 36 100
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is to be prefix="o" ns="urn:schemas-microsoft-com:office:office"? ?xml:namespace>
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错误
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相关题目：
【单选题】Markov analysis is a technique that deals with the probabilities of future occurrences by
A.
using the simplex solution method
B.
analyzing currently known probabilities
C.
statistical sampling
D.
the minimal spanning tree
E.
None of the above
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B.
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B.
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