下列关于耳间衰减的说法中不正确的是
A、耳间衰减代表信号从测试耳传至非测试耳过程中能量的衰减;D
暂无解析
过敏性紫癜最具特征性的临床表现是()
His article is better than_____in the class.
30岁,初孕妊娠34周,产前检查BP24/15KPA(180/112mmHg)拒绝住院治疗,3小时前突然腹痛伴阴道流血,Bp10/4kPa(75/30mmHg),Pl20次/分,宫底剑突下2指,板状腹,胎位不清,胎心音消失,宫颈未消失,最正确处理应是()
新生儿败血症出生后最常见的感染途径是()
He was very_____to go,but he had no choice.