自规律性宫缩开始至宫口扩张3cm称()从宫口扩张3cm开始至宫口开全称()从规律性宫缩开始至宫口开全称() ["A．第一产程","B．活跃期","C．潜伏期","D．第二产程","E．第三产程"]
以下哪一项不属于超声检测骨骼系统的应用范围() ["A．显示正常骨的完整声像图","B．骨折","C．骨肿瘤","D．诊断关节疾病","E．骨软骨病变"]
临产20小时，宫口开大2cm()临产18小时，宫口开大6cm()宫口开大6cm，3小时无进展() ["A．活跃期延长","B．潜伏期延长","C．正常产程","D．活跃期停滞","E．第二产程停滞"]
肢体软组织内非金属异物有鉴别意义的超声表现是() ["A．患部检出强回声斑块","B．斑块轮廓欠清晰","C．斑块周围有反应性低回声区","D．斑块后方有明确声影","E．斑块后方无明显彗星尾征"]
下列骨及软骨的正常声像图哪项错误() ["A．骨皮质为平直连续光滑的强回声","B．骨髓若显示，呈弱回声","C．骨的骺端膨大，表面薄而光整","D．纤维软骨为中等回声，透明软骨为强回声","E．骨松质为内部有散在强斑点的弱回声"]
临产后，宫缩一直短而弱，间歇长，产程进展慢()产程进展到一定阶段后，宫缩减弱，出现宫缩乏力()子宫收缩保持正常极性，仅间歇长，持续短，弱而无力()
