关于麻疹的流行病学特点，下列哪项是错误的（） A.患者是唯一的传染源，前驱期及出疹期
题型：单项选择题
问题：
关于麻疹的流行病学特点，下列哪项是错误的（）
A.患者是唯一的传染源，前驱期及出疹期均有传染性
B.以呼吸道飞沫直接传播为主
C.患病后获得持久免疫，少有第2次感染者
D.恢复期患者存在携带病毒的现象
E.主动免疫是预防麻疹的重要措施
题型：单项选择题
| 把与图片相对应的描述的序号填到图下的横线上 |
| A. John is a boy. He is of medium height with short curly hair. He is wearing a green T-shirt,dark green pants and blue shoes. B. Sarah is my aunt. She is fifty-five. She is heavy with glasses. She has short black hair. She is wearing an orange dress. C. Nancy is good-looking. She has short curly black hair. She is wearing a beautiful yellow dress and orange shoes. D. Bruce is a doctor. He is of medium build. He has short hair and he wears small glasses. He's wearing a brown and white sweater and blue pants. E. Jim is my friend. He's tall and thin with straight brownhair. He is wearing a white shirt, black pants and blue shoes. |
     1 ._____ 2 ._____ 3 ._____ 4 ._____ 5. _____ |