【单选题】10个月男孩,呕吐、腹泻5d,伴高热 (39℃),大便5~6次/日,初为水样便,随即为黏冻状大便,偶带血,量不多。体检:轻度脱水貌,心肺腹未见异常。大便常规:黏液便,白细胞15~20/高倍镜,偶见吞噬细胞。连续大便培养两次未见痢疾杆菌,该婴儿腹泻最大可能的病因是
【单选题】Chronic degenerative disease of the liver:
【单选题】下列图符名标识的图符不属于数据流图合法图符的是()
【简答题】_______________ says: “ Scientific data suggest positive relationships between a vegetarian diet and reduced risk for several chronic degenerative diseases.”
【单选题】当儿童能够认识到一个完整的苹果被分成四份后质量并没有改变时,儿童的思想已经具备了( )