单项选择题
一患儿，男，6岁，排便时肛门脱出一肿物，淡红色，环形，便后可自行回纳，偶有点滴出血。最可能的诊断是：
单项选择题 听力原文：You haven't bumped into Steve by any chance, have you?(A) He was sorting mail in the next room.(B) No, I didn't feel like riding things there.(C) It was just a bumper to bumper accident.(7)A． B． C．
单项选择题 不属于保险直接销售的是( )。
单项选择题 把劳动密集型产品的某些生产阶段安排在劳动力成本较低的国家进行,这种对外投资是( )。
