Basel, Switzerland's third most populous city, boasts the highest concentration of museums and the oldest public art collection in the world. Each year in June, the city also plays host to the largest and most influential art fair in the world. The documentary ART BASEL: A PORTRAIT offers viewers a glimpse of the city, the attendees and the art of the famous fair while tracing ..苍蝇没事的时候为什么要搓搓手,搓搓脚?开饭之前先洗手…