What's the difference between three-star standard and business express double standard? Please attach a picture if you can. Thank you for your help.

Three-star: Each hotel must have more than 75% rooms for two people. There are two beds in the room, and the accommodation guide is on the table. There should be central air conditioning, refrigerator, desk lamp, floor lamp, sofa chair, kitchen utensils for putting quilts and clothes for guests. The toilet must have a toilet, a big bathtub, a shower head, a washbasin, a bath towel, a towel, a comb, disposable toothpaste and a toothbrush. "

Double room standard: one double bed or two single beds, color TV, toothbrush and towel for two people, etc. Bathrooms and showers include 24-hour hot water and simple tea sets. This is the most common standard room. If there is a "star" level, these facilities will be upgraded with the increase of "stars". Supporting facilities will not increase. The standard room area can be large or small, and there is no regulation. Only the supporting facilities are certain.