[名词解释] 半价层

Kerley线 下列哪些是急性输卵管妊娠破裂时的体征() ["A．下腹明显压痛和反跳痛","B．子宫稍大、软","C．子宫颈举痛，子宫漂浮感","D．移动性浊音阳性","E．附件包块形成，边界清楚"] 空腔 下列哪些疾病与雌激素有关() ["A．子宫内膜癌","B．卵巢颗粒细胞瘤","C．卵巢无性细胞瘤","D．子宫肌瘤","E．宫颈癌"] 宫颈癌术后的并发症包括() ["A．心力衰竭","B．感染","C．淋巴囊肿","D．尿潴留","E．输尿管瘘"] 半价层