Are the bullet trains and ordinary trains on the same track?

The bullet trains run on high-speed railways and ordinary railways, and the routes mixed with ordinary trains are: Wuhan to Xiangyang, Wuhan to Nanchang via Ezhou, Wuhan to Chongqing via Yichang, Chongqing to Chengdu via Suining, Beijing to Sanguan, Shenyang, Baoding to Tianjin, Jinan to Qingdao and Lanzhou to Urumqi.