题目

使用一次性注射器、输液器，从预防传染病的措施分析，这属于（ ） A . 控制传染源 B . 保护易感人群 C . 清除病原体 D . 切断传播途径 答案：D?Could you tell me ________ ? ?Sorry, I don't know. You can ask the policeman over there. A. where is the post office B. where the post office is C. how can I get to the cinema D. how I can get the cinema