下列哪项是产程进展的标志
A．产妇自我感觉B．宫缩频率C．血性分泌物量的多少D．先露下降和宫口扩张E．宫缩强度
参考答案：D
The computer was used in teaching. As a result, not only _____, but students became more interested in
the lessons.[ ]
A. saved was teachers' energy
B. was teachers' energy saved
C. teachers' energy was saved
D. was saved teachers' energy
诊断成年女性贫血的标准为血红蛋白浓度低于（）.
A.95g/L
B.105g/L
C.90g/L
D.120g/L
E.100g/L
