Question: hvilken motorvej er den længste i usa
Answer: U.S. Route 20; U.S. rute 20 i Nebraska; U.S. Route 20 i Ohio; U.S. Route 20 i Montana; Route 20 i Iowa, USA; U.S. Rute 20 i Massachusetts; U.S. Route 20 i New York; U.S. Route 20 i Oregon; U.S. Route 20 i Idaho; U.S. rute 20 i Indiana; U.S. Route 20 i Pennsylvania; Route 20 i Illinois, USA