1) McDonald's in China has some differences from Japan in terms of price, taste, and names but maintains similarities in management and interior design. 2) A hamburger at McDonald's in China costs around 6-7 yuan, which is less than 100 yen, but it is seen more as a special restaurant compared to Japan. 3) While China has original menu items and may lack cheeseburgers, most items are the same as Japan, possibly due to being in Asia, and food quality is ranked 15th globally.