第20题: [单项选择]下述哪项是早期宫颈癌的症状() A. 阴道大量排液 B. 反复阴道出血 C. 接触性阴道出血 D. 大腿及腰骶部疼痛 E. 恶病质 参考答案:C 答案解析:接触性出血:这是宫颈癌最突出的症状,宫颈癌中约有70%~80%的患者有阴道出血现象。多表现为性交后或行妇科检查,或用力大便时,阴道分泌物混有鲜血。
A. research and development of new medicine B. new devices of prevention C. separation of infectors D. surveillance and information exchange 参考答案:D 答案解析:[听力原文]26-27 Mike Leavitt, the US Secretary for Health and Human Services says surveillance an