北韓堅守防疫淨土？對疫情三緘其口

<img src="https://static.rti.org.tw/assets/thumbnails/2020/02/05/922ffa0a3c1a842451968f456ffed843.jpg" width="360" alt="新型冠狀病毒(2019-nCoV，武漢肺炎)疫情蔓延，圖為北...