8个月女婴，腹泻1周，大便初为黄绿稀便，近2天大便深绿色，伴有脓血及黏液，镜检多量红、白细胞，病后发热，精神差。该患儿腹泻的主要机制是

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='28255' and id < 2313603 and id<>'2313603' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='28255' and id > 2313603 and id<>'2313603' order by id asc limit 5