According to this passage, people might have concerns about dron
分类: 基础英语(00088)发布时间: 2024-08-26 05:28浏览量: 1
According to this passage, people might have concerns about drones. A、noise B、environmental C、financial D、security 【正确答案】：D 【题目解析】：As drone use increases, it brings new challenges. Regulators are concerned that drones may cause danger to airplanes.