题目

在新冠肺炎疫情防控工作中进行的全员核酸检测，从传染病学角度看，是为了筛查出人群中潜在的（ ） A . 传染源 B . 传播途径 C . 易感人群 D . 过敏原 答案：A将相应的问句和答语连线,再给对话选择合适的图片。（_____）1. How do you come to school? a. Hooray!（_____）2. Do you come to school by bike? b. I usually go to Beijing by plane.（_____）3. Let's go to the park. c. Me too.（_____）4. How do you get to Beijing? d. OK.（_____）5. I often go to school on foot. e. By bus.（_____）6. Stop and wait at a red light, f. Yes, I do.