Why are Bazhong and Guangyuan in Sichuan Basin so poor?
That's not entirely correct. Bazhong and Guangyuan used to be poor and mountainous! The traffic is inconvenient, the goods outside can't get in, and the specialties inside can't get out. Restrict economic development. But it's different now. After the earthquake, friends from all over the world gave reciprocal support and local roads were built. The economy has advanced by leaps and bounds, and now Guangyuan in Bazhong is also rich.