Calligraphy is a traditional culture and art unique to China. It is a rule for writing Chinese characters.

Which of the following idioms has nothing to do with calligraphy:

Answer: D "Painting with sand and sealing mud" means that the brush should be used "like a cone to draw sand and sealing with sealing mud". This is a metaphor for the calligrapher's method of using the brush; "Iron painting and silver hook" means that the calligrapher uses the brush and his stipples are strong

, and soft and charming, the words come from "On the Use of Pens" by Ouyang Xun in the Tang Dynasty; it is said that Wang Xizhi was writing on a wooden board. When carpentry was carving, he found that the handwriting penetrated three-thirds of the way into the wooden board.

"Three points into the wood" mostly describes the power of calligraphy; "the finishing touch" tells the story of Zhang Sengyao, a famous painter in the Southern and Northern Dynasties, who had wonderful painting skills. Later, it is often used as a metaphor for using a few words to highlight the essence of key words when writing an article or speaking.

The content is vivid and powerful.

Item D is related to painting and should be selected.

Therefore, the answer to this question is D.